• <tr id="yyy80"></tr>
  • <sup id="yyy80"></sup>
  • <tfoot id="yyy80"><noscript id="yyy80"></noscript></tfoot>
  • 99热精品在线国产_美女午夜性视频免费_国产精品国产高清国产av_av欧美777_自拍偷自拍亚洲精品老妇_亚洲熟女精品中文字幕_www日本黄色视频网_国产精品野战在线观看 ?

    Nurses and nursing students’ knowledge regarding blood transfusion: A comparative cross-sectional study

    2022-10-10 09:17:46RakhiGAURShivKumarMUDGALNehaSUYALSureshKumarSHARMARajatAGARWALRituRAJChaturvediJITENDER
    Journal of Integrative Nursing 2022年3期

    Rakhi GAUR, Shiv Kumar MUDGAL, Neha SUYAL, Suresh Kumar SHARMA, Rajat AGARWAL, Ritu RAJ, Chaturvedi JITENDER

    1College of Nursing, AIIMS, Deoghar, Jharkhand, India; 2Government Nursing College, Haldwani, Uttarakhand, India; 3College of Nursing, AIIMS, Jodhpur, Rajasthan, India; 4Department of CTVS, AIIMS, Deoghar, Jharkhand, India; 5Department of Medicine, AIIMS, Deoghar, Jharkhand, India; 6Department of Neurosurgery, AIIMS, Rishikesh, Uttarakhand, India

    Nurses and nursing students’ knowledge regarding blood transfusion: A comparative cross-sectional study

    Rakhi GAUR1, Shiv Kumar MUDGAL1, Neha SUYAL2, Suresh Kumar SHARMA3, Rajat AGARWAL4, Ritu RAJ5, Chaturvedi JITENDER6

    1College of Nursing, AIIMS, Deoghar, Jharkhand, India;2Government Nursing College, Haldwani, Uttarakhand, India;3College of Nursing, AIIMS, Jodhpur, Rajasthan, India;4Department of CTVS, AIIMS, Deoghar, Jharkhand, India;5Department of Medicine, AIIMS, Deoghar, Jharkhand, India;6Department of Neurosurgery, AIIMS, Rishikesh, Uttarakhand, India

    ABSTRACTObjective:The objective of this study is to measure and compare the knowledge of nursing students and nurses on blood transfusion in an Indian context.Materials and Methods:The present comparative, cross-sectional study enrolled 296 nurses and 177 nursing students through a purposive sampling from a medical university hospital and different nursing institutions. The data were collected in the month of June and July of year 2021, using a self-structured questionnaire. The questionnaire had two sections: Section-I contained demographic data (8 items for nurses and 5 for students) and section-II included 26 items that assessed nurses’ and nursing students’ knowledge on blood transfusion.Results:Findings indicated that nurses and nursing students had insufficient knowledge about blood transfusion. Nurses, however, had significantly greater total blood transfusion knowledge scores than nursing students (16.51 ± 3.85 vs. 12.10 ± 3.28;P< 0.001). The marital status (adjusted odds ratio [AOR] =0.456, 95% confidence interval [CI] 0.244, 0.853;P= 0.037), educational level (AOR = 5.072, 95% CI 1.982, 9.634 (P= 0.003); AOR = 6.540, 95% CI 2.54, 16.871;P= 0.001) and work experience (AOR = 0.216, 95% CI 0.067, 0.702 [P= 0.037]; AOR = 0.331, 95% CI 0.135, 0.811;P= 0.013) were the significant predictors of the level of knowledge among nurses. The attendance in any educational programme on blood transfusion (AOR = 0.225, 95% CI: 0.062, 0.818;P= 0.041) was a significant predictor of the level of knowledge among nursing students.Conclusion:Nurses and nursing students have unsatisfactory knowledge on blood transfusion; emphasizing the critical need for immediate and successful teaching activities in this area.

    Keywords:Blood transfusion, comparative, knowledge, nurses, nursing students

    Address for correspondence:Dr. Shiv Kumar MUDGAL, College of Nursing, AIIMS, Deoghar, Jharkhand, India.

    E?mail: shiv.nur@aiimsdeoghar.edu.in

    Submitted:30-Apr-2022

    Revised:08-Aug-2022

    Accepted:15-Aug-2022

    Published:29-Sep-2022

    This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.

    For reprints contact:WKHLRPMedknow_reprints@wolterskluwer.com

    How to cite this article:Gaur R, Mudgal SK, Suyal N, Sharma SK, Agarwal R, Raj R, et al. Nurses and nursing students' knowledge regarding blood transfusion: A comparative cross-sectional study. J Integr Nurs 2022;4:137-44.

    Access this article online Quick Response Code Website:www.journalin.org DOI:10.4103/jin.jin_39_22images/BZ_36_966_2775_1202_3011.png

    INTRODUCTION

    Since the early nineteenth century, blood transfusion has been one of the most common therapies available, with millions of patients around the globe receiving blood and its components every year. According to the World Health Organization report, about 9 million individuals get blood components each year in 90 different countries.[1,2]Despite substantial advances in blood transfusion techniques, there are significant negative effects and risk factors that can lead to deterioration of the recipient’s health. However, there is no suitable framework for evaluating the competence of professionals involved in carrying blood transfusion to ensure maximum safety. According to the Serious Hazards of Transfusion, transfusion mistakes are responsible for about 70% of negative outcomes. Nurses play an important role in the blood transfusion system and having the requisite knowledge and skills is vital considering their close contact with patients. As a result, assessing this knowledge has been a popular topic of discussion among researchers.[2,3]

    The knowledge and skills of the nurses are critical in ensuring the safety and effectiveness of this procedure. It may result in fatal complications if proper precautions are not followed during a blood transfusion. Acute hemolytic reactions, febrile events, and hypersensitivity are the most frequent acute reactions that occur quickly after the initiation of a blood transfusion. Furthermore, the incidence of these events is linked to considerable morbidity and mortality.[4,5]Human errors in hospital wards, such as bedside mixing of blood units, misidentification of donors and misinterpretation of screening results cause the majority of complications. The lack of knowledge and skill of such practices among the nursing staff is considered the root cause of these complications.[6]Nurses are increasingly being asked to have the adequate knowledge and competency on hemotherapy. Hence, it is very important that these competency and knowledge are inculcated from the very beginning, when an individual steps into this profession as a nursing student.[7]

    Nurses with an evidence-based understanding of the technique of blood transfusion are more likely to administer safer blood transfusions and contribute to the avoidance of transfusion-related morbidity and mortality. Nurses must be thoroughly versed with this procedure in order to carry out safely. According to certain research, nurses lacked appropriate knowledge regarding blood transfusion guidelines/protocol, prevention of potential complications, and safe blood transfusion processes.[8-11]Assessing health care providers’ knowledge is crucial for creating training materials and schedules to ensure the quality and safety of blood, its components and transfusions.[12-14]Moreover, it was stressed that nurses’ knowledge and practice should be evaluated on a frequent basis.[12]

    Taking all of this into consideration, it is necessary to determine the present state of knowledge on blood transfusion among nurses and nursing students. As an introduction to health care quality improvement programme, we conducted this study to assess and compare nurses’ and nursing students’ knowledge of blood transfusion, emphasizing their critical role in the transfusion procedure. These findings may serve as a guide for nurse managers, educators, and clinicians in developing routine in-service training to assure the safe blood transfusion practices. The present study was done with an objective to determine the level of knowledge about blood transfusion among nurses and nursing students, as well as the factors that influence their level of knowledge.

    MATERIALS AND METHODS

    This study was approved by the Institute Ethics Committee (IEC) of Pacific Medical College & Hospital, Udaipur District, India, with the approval number IEC/PMCH/21/236 on July 23, 2021.

    Study design

    This cross-sectional comparative-analytical study was performed during June and July of 2021.

    Study settings

    The current study was conducted in one teaching and referral hospital and five nursing colleges in India that are affiliated with a government medical university and are recognized by the Indian Nursing Council. Over 750 beds are split throughout medicine, surgery, emergency, neonatal, pediatric and dialysis wards, as well as coronary care, critical care, and neonatal intensive care units. The nursing staff has good exposure of broad specialties such as medicine, surgery, pediatrics, pulmonary medicine along with super specialties such as cardiology, neurology, endocrinology, and gastroenterology. The hospital has continuous inflow of patients from South-west Rajasthan, India, within a 300 km radius in this hospital; nursing and medical staff perform a variety of advanced medical and surgical treatments in collaboration with university-based medical experts who educate healthcare students.

    Study population

    The nurse’s population (n= 970) included all nurses employed in various treatment wards, including medicine, surgery, emergency and intensive care units. Nurses with minimum diploma in nursing or higher degree, minimum work experience of 6 months and direct involvement in patient care were selected for the study. The criteria of selection of nursing students (n= 277) were based on their enrolment in final year of bachelor’s degree at the time of data collection and lack of any formal hospital job experience. Dropping out of the study or submitting an incomplete questionnaire was considered as exclusion criteria.

    Sample size determination and sampling technique

    We calculated the required sample size for cross-sectional research using the “N=N/(1 + ne)2”method, presuming a 95% confidence interval (CI) and a 5% type I error rate.[15]Based on an anticipated population of 277 final-year nursing students and 970 nurses, a minimum of 163 nursing students and 282 nurses were deemed sufficient to power the study and allow for more precise results. One hundred and eighty nursing students in their final year of bachelor’s degree, and 310 nurses, were contacted with the intention of participation in the study.

    A total of 177 nursing students and 296 nurses finally agreed to participate and were finally included in the study.

    Instrument and data collection

    The current study employed a researcher-created questionnaire to assess nurses’ and nursing students’ knowledge of blood transfusion on the basis of previous researches.[3,6,13]To determine the questionnaire’s validity and reliability, a panel of faculty members remarked on the questionnaire’s items and the content validity ratio was determined. Then, the relevant content validity index was computed. A test-retest approach was utilized to measure the questionnaire’s reliability (r= 0.9). The questionnaire was divided into two sections: The first section contained demographic data (8 items for nurses and 5 for students). The second section included 26 items that assessed nurses’ and nursing students’ knowledge of blood transfusion procedures (correct and wrong). Each accurate response received one mark, whereas an incorrect response received zero marks. In the present study participants scored more than 60% of total marks were considered having adequate knowledge on blood transfusion.

    After obtaining approval from the IEC and consent from the competent authorities, data was collected. During the end of the nurses’ shifts and following the completion of nursing students’ lectures, the researchers delivered questionnaires to the participants in both the groups. The questionnaire took approximately 20 min to complete. It took 2 months to finish the entire data collection process.

    Statistical analysis

    After data collection, it was imported into SPSS version 26 (IBM Corp., Armonk, New York, USA). By viewing, calculating frequencies, and categorizing the data, they were cleansed. The calculations of frequencies and proportions were made. Demographic characteristics were quantified using descriptive statistics (i.e. standard deviation, mean, minimum, and maximum). The categorical variables were associated statistically. For nonparametric distributions in intragroup comparisons, the Wilcoxon signed-rank test was utilized. Nonparametric distributions such as the Mann-WhitneyUtest and Kruskal-Wallis were utilized in the intergroup comparisons. Then, multiple logistic regressions were used to determine the presence of distinct predictor variables. AP< 0.05 was judged significant.

    RESULTS

    Socio-demographic characteristics of nurses and nursing students

    Table 1 depicts information about all participants (nurses and nursing students). Nurses were aged between 21 and 34 years (mean 26.75 ± 3.28) and half of participants (148, 50.0%) were married. More than half of the participants were females (n= 165, 55.7%) and the majority of the participants (n= 213, 72.0%) had a bachelor degree in nursing. Majority of the participants (n= 122, 41.2%) belonged to rural background; had 1-3 years of working experience (n= 109, 36.8%) in profession and approximately half of them were working in general ward (n= 156, 52.7%). Surprisingly, majority of them (n= 205, 69.3%) did not attend any educational program related to blood transfusion.

    The nursing students’ average age was 23.05 ± 0.89 years (range 22 - 27 years). Females made up somewhat more than three-quarters of the nursing students (n= 136, 76.8%). Just more than half (n= 89, 50.3%) of students belonged to rural background, following with urban (n= 55, 31.1%) and semi urban background (n= 33, 18.6%). Most of them (n= 171, 96.6%) were unmarried and approximately two-third (n= 110, 62.1%) of them had not attended any educational programme related to blood transfusion [Table 1].

    Factors associated with knowledge of nurses and nursing students

    A Kruskal-Wallis and Mann-Whitney test found statistically significant differences in the mean knowledge scores of nurses based on their residence (P= 0.018), marital status (P= 0.000), educational level (P= 0.000), working experience (P= 0.017) and whether they had ever attended any educational programme related to blood transfusion (P= 0.005) while mean knowledge scores of nurses were not having significant difference on the basis of age category, gender, and working area [Table 1].

    According to the results of a Kruskal-Wallis and Mann-Whitney test, there were no statistically significant difference in the mean knowledge scores of nursing students based on their age (P= 0.143), gender (P= 0.504), residence (P= 0.538), marital status (P= 0.775), and whether they had attended any educational programme on blood transfusion (P= 0.140) [Table 1].

    Level of knowledge of blood transfusion

    On the 26-items knowledge questionnaire, nurses’ knowledge scores ranged 3-26, with mean score of 16.51 ± 3.85 while nursing students knowledge scores ranged 6-21, with mean score of 12.10 ± 3.28; there was statistically significant difference between nurses’ and nursing students’ knowledge regarding blood transfusion (P< 0.001). It was showed in Table 2 that 58.4% nurses and only 11.9% nursing students had adequate knowledge regarding blood transfusion [Table 2].

    Table 1: Association of demographic characteristics of nurses and nursing students with blood transfusion knowledge

    Table 2: Comparison of the level of blood transfusion adequate knowledge between nurses and nursing students

    Factors predicting the level of knowledge among nurses

    The researchers employed multivariable logistic regression to find the determinants of blood transfusion knowledge. As a result, coefficients were calculated as crude and adjusted odds ratio (AOR) in relation to the referent category. The participants’ marital status and educational level were revealed to be significant predictors. As a result, unmarried nurses were 54.6% less likely than married nurses to have good knowledge (AOR = 0.456, 95% CI 0.244, 0.853). Nurses who had higher education level B.Sc. (N) and M.Sc. (N) were 5.072 and 6.540 times more likely to have better knowledge, respectively, than those who had diploma in nursing (AOR = 5.072, 95% CI 1.982, 9.634; AOR = 6.540, 95% CI 2.54, 16.871). Surprisingly, nurses with more than 6 years of experience and 3-5 years of experience were 78.4% and 66.9% less likely to have good knowledge, respectively, than those who had <1 year of experience (AOR = 0.216, 95% CI 0.067, 0.702; AOR = 0.331, 95% CI 0.135, 0.811) [Table 3].

    Factors predicting the level of knowledge among nursing students

    Bivariate logistic regression analysis and multivariate logistic regression analysis showed that except ever attended any educational programme related to blood transfusion; none of socio-demographic characteristics of nursing students were statistically significant predicting knowledge on blood transfusion. Accordingly, nursing students who had not attended any educational programme on blood transfusion were 77.5% less likely to had good knowledge than those who ever attended (AOR = 0.225, 95% CI 0.062, 0.818) [Table 4].

    Table 3: Logistic regression of knowledge with sociodemographic status of the nurses (n=296)

    Table 4: Logistic regression of knowledge with sociodemographic status of the nursing students (n=177)

    DISCUSSION

    Nurses are the most important members of the human chain engaged in the multi-step blood transfusion procedure because of their close contact to the patients. To maintain patient safety, it is necessary for them to have a theoretical and practical awareness of the numerous stages involved in blood transfusion. The purpose of this study was to evaluate and compare nurses’ and nursing students’ knowledge toward blood transfusion in the Indian context, with the intention of promoting and integrating material for a sustainable training programme and increased emphasis on blood transfusion in nursing curricula.

    Our findings indicate that 58.4% of nurses and just 11.9% of nursing students meet the 60% cutoff criteria required for adequate knowledge in blood transfusion.[16]Similarly, earlier research has revealed that nurses and nursing students’ overall awareness of blood transfusion is poor to moderate.[16-19]According to studies, possible explanations for nursing students’ lack of understanding include insufficient training in pediatric pain treatment in nursing curriculum.[20,21]Limited options for registered nurses to receive continuous education on this subject may also contribute to these results.[22,23]These findings emphasize the importance of enhancing nurses’ and nursing students’ awareness on blood transfusions.

    Our findings demonstrated a statistically significant difference in the mean of blood transfusion knowledge scores between the two groups. The knowledge of blood transfusions among nurses was significantly greater than that of nursing students. While there are no researches to compare our findings with when it comes to blood transfusion knowledge, there are studies on pediatric pain management knowledge among nurses and nursing students that show a comparable knowledge gap.[24]These findings contrast with those of another study,[25]which found that nursing students scored much higher than nurses. This disparity could be due to the participants’ backgrounds. The notion that knowledge learned in nursing education programme may be enhanced during practice might be used to justify these findings.

    Nurses with a bachelor’s or master’s degree in nursing scored significantly more on knowledge tests than nurses with a diploma in nursing. This finding is consistent with those of Duarte et al.[18]and Encan and Akin[10]who reported that nurses with a bachelor’s degree in nursing had significantly greater knowledge scores than those with a diploma in nursing. Perhaps the content and duration of training have an effect on the knowledge acquisition. Similarly, participants who were residing in cities outperformed those who lived in semi-urban and rural areas, which is consistent with the findings of Mudgal’s[26]and Dubeyet al.’s studies.[27]This could be explained by the participants’ increased and easy access to learning resources for updating their skills and knowledge available in urban areas.

    In contrast to the findings of Duarteet al.[10]and Dubeyet al.,[27]nurses with less experience in the present study scored significantly greater than those with more experience. These surprising results might be explained by the fact that nurses who had less experience might be careful in applying transfusion practice more cautiously. Another explanation could be that nurses with less experience answered questions according to their theoretical knowledge rather than their real practice.

    Nurses’ knowledge regarding blood transfusion was significantly higher among those who had attended any educational programme than their counterpart. These findings are in line to the results of Dubeyet al.[27]and Sindhulina and Joseph,[28]whereby nurses who received in-service education on the subject had a significantly higher knowledge scores compared to those who had not attended it. This research demonstrated that continuing education enhances nurses’ ability to do efficient practice of blood transfusions. This indicates the importance of close monitoring, designing education programme tailored to the educational needs of nurses, and increasing in-service blood transfusion instruction in clinical settings.

    There was no statistically significant difference between the knowledge scores and the socio-demographic variables of nursing students in this study. The possible reasons might be that all students are studying in final year, following standard curricula and practical training. In multivariate analysis, nursing students who attended any educational programme on blood transfusion had significantly higher knowledge score than those who had not attended educational programme. These results demonstrate the importance and further need of educational programs in addition to the standard curriculum. The students should be encouraged to participate in such programs.

    Strengths and limitations of the study

    Based on existing literature, this may be the pioneer study of its kind in India and Southeast Asia, to the best of the authors’ knowledge. The sample size employed in this study indicates that the investigation was well powered to

    confirm the findings, which can be applicable to other similar scenarios. The inclusion of a varied range of educational institutions and healthcare institutes adds to the study’s credibility. One of the study’s flaws was that participants were recruited purposely rather than randomly primarily on their accessibility and availability at the research settings. Despite these limitations, this study gives valuable information about nurses’ and nursing students’ knowledge of blood transfusion in the Indian context.

    Implications

    The current practice of nursing education, policy, and future research are all implicated by the study findings. Blood transfusion practice and measures should be reinforced in the nursing curriculum. The multiple approaches to education that aim to transform good knowledge to safe clinical practice should be used and measures should be taken for participation in such programme. Nurses should be motivated to involve in self-directed learning as well as continuing professional education to increase their awareness of blood transfusion. Any revisions in existing blood transfusion guidelines should be communicated and followed to guide nursing practice. Qualitative research methods should be used in future studies to better understand the elements that influence nurses’ and nursing students’ knowledge about the issues. Observational studies on the approach in which blood is transfused in hospitalized patients may potentially be informative and contribute in the creation of future educational initiatives.

    CONCLUSION

    Nurses and final year nursing students have inadequate knowledge of blood transfusion, highlighting the necessity for immediate and effective training activities in this field. The governing authorities should take immediate action like including training courses to give the necessary expertise regarding blood transfusions and measures to ensure maximum participation. Nursing school curricula should be updated to include transfusion medicine for the better delivery of good and clinically sound nurses to the healthcare. There should be implementation of regular medical education activities among the nurses to augment their current knowledge and expertise. There should be regular questionnaires among the nursing staff to test their knowledge of blood transfusion and personnel lacking in any area should be updated. The implementation of these measures can be vital in minimizing human errors in practice of blood transfusion.

    Financial support and sponsorship

    Nil.

    Conflicts of interest

    There are no conflicts of interest.

    精品国内亚洲2022精品成人| 国产免费男女视频| 麻豆久久精品国产亚洲av| 在线观看一区二区三区| 中国国产av一级| 亚洲欧美清纯卡通| 国产伦理片在线播放av一区 | 久久久久久九九精品二区国产| 天堂网av新在线| 亚洲在久久综合| 在线观看av片永久免费下载| 婷婷六月久久综合丁香| 天天躁日日操中文字幕| 晚上一个人看的免费电影| 日韩欧美在线乱码| 国产女主播在线喷水免费视频网站 | 亚洲欧美精品综合久久99| 亚洲av中文字字幕乱码综合| 久久久久久九九精品二区国产| 精品午夜福利在线看| 18禁在线无遮挡免费观看视频| 国产精品蜜桃在线观看 | 97超视频在线观看视频| 插阴视频在线观看视频| 老师上课跳d突然被开到最大视频| 天天一区二区日本电影三级| 久久国产乱子免费精品| 91在线精品国自产拍蜜月| 秋霞在线观看毛片| 97超碰精品成人国产| 男女啪啪激烈高潮av片| 激情 狠狠 欧美| 国产精品久久久久久精品电影小说 | 十八禁国产超污无遮挡网站| 午夜福利在线观看免费完整高清在 | 韩国av在线不卡| 中文字幕久久专区| 一进一出抽搐gif免费好疼| 欧美精品国产亚洲| 可以在线观看的亚洲视频| 国产高清三级在线| 国产免费一级a男人的天堂| 久久久久久久久久黄片| 午夜福利视频1000在线观看| 又爽又黄a免费视频| www.av在线官网国产| eeuss影院久久| 深爱激情五月婷婷| 如何舔出高潮| .国产精品久久| 成人国产麻豆网| а√天堂www在线а√下载| 国产视频内射| 亚洲在久久综合| 久久人人精品亚洲av| 日韩强制内射视频| 国产69精品久久久久777片| 波多野结衣巨乳人妻| 悠悠久久av| 国产高清视频在线观看网站| 一进一出抽搐动态| 97超碰精品成人国产| 亚洲精品日韩在线中文字幕 | 日韩,欧美,国产一区二区三区 | 69人妻影院| 国产69精品久久久久777片| 国产亚洲精品av在线| av天堂在线播放| 国国产精品蜜臀av免费| 久99久视频精品免费| av专区在线播放| 成人毛片60女人毛片免费| av又黄又爽大尺度在线免费看 | 久久人人爽人人片av| a级一级毛片免费在线观看| 99久久久亚洲精品蜜臀av| 九色成人免费人妻av| 亚洲va在线va天堂va国产| 亚洲国产精品国产精品| 波野结衣二区三区在线| 亚洲欧美成人综合另类久久久 | av黄色大香蕉| 日本黄大片高清| 九九久久精品国产亚洲av麻豆| a级毛片a级免费在线| 成人高潮视频无遮挡免费网站| 少妇猛男粗大的猛烈进出视频 | 午夜精品在线福利| 岛国在线免费视频观看| 欧美日韩乱码在线| 嫩草影院入口| 久久6这里有精品| 六月丁香七月| 欧美xxxx黑人xx丫x性爽| 亚洲欧美日韩高清专用| 午夜免费激情av| 国产真实乱freesex| 乱系列少妇在线播放| 热99re8久久精品国产| 日本欧美国产在线视频| 精品一区二区三区视频在线| 麻豆av噜噜一区二区三区| 日本三级黄在线观看| 中文字幕av在线有码专区| 国产精品一区二区在线观看99 | 99热全是精品| 国产成人一区二区在线| www日本黄色视频网| 91在线精品国自产拍蜜月| 成人亚洲精品av一区二区| 国产精品国产高清国产av| 亚洲欧美成人综合另类久久久 | 十八禁国产超污无遮挡网站| 亚洲精品日韩在线中文字幕 | 插逼视频在线观看| 成人特级av手机在线观看| 韩国av在线不卡| 综合色丁香网| 美女 人体艺术 gogo| 中文字幕av在线有码专区| 日本与韩国留学比较| 亚洲七黄色美女视频| 亚洲美女搞黄在线观看| 成人毛片60女人毛片免费| 色哟哟·www| 久久99热6这里只有精品| 国产探花极品一区二区| 免费不卡的大黄色大毛片视频在线观看 | 国产精品av视频在线免费观看| 亚洲五月天丁香| 国内久久婷婷六月综合欲色啪| 小说图片视频综合网站| 国产成人福利小说| 国产精品久久久久久久久免| 亚洲第一区二区三区不卡| 天堂√8在线中文| 午夜激情福利司机影院| 国产黄片美女视频| 99在线人妻在线中文字幕| 美女 人体艺术 gogo| 亚洲,欧美,日韩| 亚洲欧美成人综合另类久久久 | 日韩视频在线欧美| 国产午夜精品久久久久久一区二区三区| 69av精品久久久久久| 乱码一卡2卡4卡精品| 色哟哟哟哟哟哟| 久久精品综合一区二区三区| 国产单亲对白刺激| 寂寞人妻少妇视频99o| 亚洲无线在线观看| 成人亚洲精品av一区二区| 精品不卡国产一区二区三区| 亚洲国产欧洲综合997久久,| 中文字幕制服av| 网址你懂的国产日韩在线| 亚洲av.av天堂| 麻豆国产av国片精品| 国产伦理片在线播放av一区 | 国产69精品久久久久777片| 国产精品国产高清国产av| 99热只有精品国产| 最近的中文字幕免费完整| 亚洲无线观看免费| 爱豆传媒免费全集在线观看| 成年免费大片在线观看| 亚洲第一区二区三区不卡| 久久久久久大精品| 直男gayav资源| 精品熟女少妇av免费看| 欧美日韩乱码在线| 国内精品久久久久精免费| av天堂在线播放| 美女内射精品一级片tv| 欧美日韩国产亚洲二区| 亚州av有码| 99热6这里只有精品| 色综合色国产| 久久久精品94久久精品| 日韩欧美国产在线观看| 日本五十路高清| 日日摸夜夜添夜夜爱| 国产又黄又爽又无遮挡在线| 亚洲精品自拍成人| 久久久久九九精品影院| 看片在线看免费视频| 97人妻精品一区二区三区麻豆| 国产精品久久视频播放| 中国美白少妇内射xxxbb| 久久这里只有精品中国| 亚洲欧美清纯卡通| 级片在线观看| 一级黄色大片毛片| 国产精品国产高清国产av| 亚洲精品久久国产高清桃花| 国产日本99.免费观看| 国产免费男女视频| 国内揄拍国产精品人妻在线| 久久九九热精品免费| 国产日韩欧美在线精品| 人人妻人人看人人澡| 亚洲第一区二区三区不卡| av免费在线看不卡| 亚洲国产色片| 97超碰精品成人国产| 国产精品无大码| 欧美在线一区亚洲| 精品99又大又爽又粗少妇毛片| 国产白丝娇喘喷水9色精品| 日日撸夜夜添| 久久九九热精品免费| 国产色爽女视频免费观看| 色哟哟哟哟哟哟| 淫秽高清视频在线观看| 三级毛片av免费| 欧美+日韩+精品| 搡女人真爽免费视频火全软件| 午夜亚洲福利在线播放| 三级毛片av免费| 日韩视频在线欧美| 少妇熟女aⅴ在线视频| 99久久中文字幕三级久久日本| 国产亚洲av嫩草精品影院| 中文在线观看免费www的网站| 国产高清不卡午夜福利| 国产精品福利在线免费观看| 一级毛片电影观看 | 精品久久久久久久久亚洲| 国产一区二区激情短视频| 美女内射精品一级片tv| 免费黄网站久久成人精品| 久久久欧美国产精品| 精品熟女少妇av免费看| 亚洲欧美成人综合另类久久久 | 午夜老司机福利剧场| 嘟嘟电影网在线观看| 日韩欧美在线乱码| 午夜福利在线在线| 国产探花极品一区二区| 亚洲欧美日韩无卡精品| 亚洲精品国产av成人精品| 在线播放无遮挡| av免费在线看不卡| 欧美高清性xxxxhd video| 久久热精品热| 日本欧美国产在线视频| 99视频精品全部免费 在线| 舔av片在线| 国产 一区 欧美 日韩| 日本与韩国留学比较| 99久久无色码亚洲精品果冻| 国产欧美日韩精品一区二区| 日本色播在线视频| 欧美xxxx性猛交bbbb| 变态另类成人亚洲欧美熟女| 偷拍熟女少妇极品色| 国产成人精品一,二区 | 啦啦啦韩国在线观看视频| 在线观看一区二区三区| 99久国产av精品| 日韩av不卡免费在线播放| 中国美女看黄片| 国产伦理片在线播放av一区 | 久久精品国产亚洲av天美| 此物有八面人人有两片| 美女内射精品一级片tv| 成人高潮视频无遮挡免费网站| 国产一区二区亚洲精品在线观看| av黄色大香蕉| 久久亚洲精品不卡| 成年免费大片在线观看| 久久久午夜欧美精品| 亚洲精品国产av成人精品| 九草在线视频观看| 噜噜噜噜噜久久久久久91| 最近最新中文字幕大全电影3| 婷婷色综合大香蕉| 美女高潮的动态| 亚洲中文字幕一区二区三区有码在线看| 综合色丁香网| 国产伦在线观看视频一区| 亚洲自偷自拍三级| 中文字幕人妻熟人妻熟丝袜美| 亚洲国产精品sss在线观看| 国产淫片久久久久久久久| 国产黄片美女视频| 91久久精品国产一区二区成人| 人人妻人人看人人澡| 亚洲av成人av| 真实男女啪啪啪动态图| 亚洲美女视频黄频| 一卡2卡三卡四卡精品乱码亚洲| 精品熟女少妇av免费看| 日韩高清综合在线| 国产欧美日韩精品一区二区| 中文欧美无线码| 麻豆国产97在线/欧美| 国产精品一区二区性色av| 国产极品精品免费视频能看的| 高清日韩中文字幕在线| 亚洲成人久久爱视频| 亚洲欧美日韩东京热| 亚洲综合色惰| 中文字幕精品亚洲无线码一区| 国产精品一区二区三区四区免费观看| 丰满的人妻完整版| 成人性生交大片免费视频hd| 亚洲无线观看免费| 国产精品免费一区二区三区在线| 亚洲av熟女| 内地一区二区视频在线| 国产亚洲精品久久久久久毛片| 国产精品人妻久久久影院| 国产片特级美女逼逼视频| 国产欧美日韩精品一区二区| av免费观看日本| 亚洲高清免费不卡视频| 国产成人a区在线观看| 久久热精品热| 少妇猛男粗大的猛烈进出视频 | 国产精品一二三区在线看| 精品少妇黑人巨大在线播放 | 噜噜噜噜噜久久久久久91| 蜜桃亚洲精品一区二区三区| 亚洲国产精品合色在线| 久久久久久久久大av| 国产日本99.免费观看| 色5月婷婷丁香| 人人妻人人澡欧美一区二区| 一夜夜www| 级片在线观看| 亚洲精品亚洲一区二区| 亚洲最大成人av| 亚洲天堂国产精品一区在线| 在线观看av片永久免费下载| 亚洲av一区综合| 亚洲不卡免费看| 九九在线视频观看精品| 国产午夜福利久久久久久| 哪里可以看免费的av片| 久久精品国产99精品国产亚洲性色| 可以在线观看毛片的网站| 两个人的视频大全免费| 久久精品综合一区二区三区| 最近的中文字幕免费完整| 国产成人freesex在线| 亚洲欧美成人综合另类久久久 | 午夜亚洲福利在线播放| 国产亚洲欧美98| 黄色日韩在线| 一级毛片电影观看 | 亚洲国产精品国产精品| 午夜福利在线观看免费完整高清在 | 国产高清有码在线观看视频| 日本在线视频免费播放| 国产乱人视频| а√天堂www在线а√下载| 欧洲精品卡2卡3卡4卡5卡区| 亚洲一区二区三区色噜噜| АⅤ资源中文在线天堂| 日本黄色片子视频| 国产成人freesex在线| 日日撸夜夜添| 国产精品伦人一区二区| 网址你懂的国产日韩在线| 深夜精品福利| 欧美色视频一区免费| 国产成人一区二区在线| 色综合亚洲欧美另类图片| 午夜激情欧美在线| 亚洲在久久综合| 国产精品久久久久久精品电影| 给我免费播放毛片高清在线观看| 赤兔流量卡办理| 亚洲乱码一区二区免费版| 免费观看的影片在线观看| 亚洲在久久综合| 亚洲一级一片aⅴ在线观看| 国产淫片久久久久久久久| 亚洲,欧美,日韩| av又黄又爽大尺度在线免费看 | 超碰av人人做人人爽久久| 一本精品99久久精品77| 国产成人精品久久久久久| 美女黄网站色视频| 国产精品伦人一区二区| 亚洲国产精品合色在线| 久久久久久久久久黄片| 男人的好看免费观看在线视频| 日韩在线高清观看一区二区三区| 国产成人精品婷婷| 国产精品久久久久久精品电影小说 | 成人漫画全彩无遮挡| 亚洲人成网站在线播| 精品熟女少妇av免费看| 69人妻影院| kizo精华| 亚州av有码| 校园春色视频在线观看| 日韩欧美 国产精品| 嫩草影院精品99| 丝袜喷水一区| 男人舔女人下体高潮全视频| 国产麻豆成人av免费视频| 亚洲电影在线观看av| 91久久精品国产一区二区三区| 丝袜喷水一区| 精品国产三级普通话版| 国产视频内射| 12—13女人毛片做爰片一| 毛片一级片免费看久久久久| 中文资源天堂在线| 精品人妻视频免费看| 欧美xxxx性猛交bbbb| 夜夜看夜夜爽夜夜摸| 一级二级三级毛片免费看| 国产探花在线观看一区二区| 久久久久久久久大av| 人妻久久中文字幕网| 亚洲精品日韩在线中文字幕 | 男人舔奶头视频| 亚洲最大成人手机在线| 黄色配什么色好看| 日本免费a在线| 亚洲人成网站在线观看播放| 丰满人妻一区二区三区视频av| 麻豆精品久久久久久蜜桃| 国产极品精品免费视频能看的| 国产精品久久久久久av不卡| 欧美人与善性xxx| 欧美一区二区国产精品久久精品| 欧美高清性xxxxhd video| 国产成人精品久久久久久| 国产精品久久久久久av不卡| av在线亚洲专区| 久久久久久久午夜电影| 一本精品99久久精品77| 久久亚洲精品不卡| 日本撒尿小便嘘嘘汇集6| 成人亚洲欧美一区二区av| 亚洲最大成人av| 亚洲欧美日韩高清在线视频| 国产精品久久久久久亚洲av鲁大| 午夜老司机福利剧场| 亚洲精品乱码久久久v下载方式| 人妻制服诱惑在线中文字幕| 久久久成人免费电影| 国产精品久久久久久精品电影小说 | a级毛片a级免费在线| 蜜桃久久精品国产亚洲av| 欧美精品一区二区大全| 亚洲精品影视一区二区三区av| 久久久久久久久久成人| 久久久久久国产a免费观看| 午夜久久久久精精品| 黄片无遮挡物在线观看| 国产毛片a区久久久久| av国产免费在线观看| 国产精品久久久久久精品电影小说 | 免费看美女性在线毛片视频| 国产av一区在线观看免费| 国产精品福利在线免费观看| 精品一区二区三区视频在线| 国产精品.久久久| 青春草亚洲视频在线观看| 国内精品久久久久精免费| 久久精品久久久久久噜噜老黄 | 高清在线视频一区二区三区 | 欧美变态另类bdsm刘玥| 免费av毛片视频| 晚上一个人看的免费电影| 国产精品久久久久久亚洲av鲁大| 最近2019中文字幕mv第一页| 精品一区二区三区人妻视频| 禁无遮挡网站| 夜夜看夜夜爽夜夜摸| 日韩欧美精品免费久久| 18+在线观看网站| 97超视频在线观看视频| 国产色爽女视频免费观看| 久久婷婷人人爽人人干人人爱| 国产69精品久久久久777片| .国产精品久久| 一个人观看的视频www高清免费观看| 欧美人与善性xxx| 最近视频中文字幕2019在线8| 黄色欧美视频在线观看| 国产精品一及| 国内久久婷婷六月综合欲色啪| 久久亚洲精品不卡| 免费看日本二区| 2022亚洲国产成人精品| 午夜激情福利司机影院| 一区二区三区高清视频在线| 亚洲四区av| 老熟妇乱子伦视频在线观看| 两个人视频免费观看高清| 免费看光身美女| 一夜夜www| 国产精品一区二区三区四区免费观看| 亚洲七黄色美女视频| 尾随美女入室| 精品午夜福利在线看| 国产91av在线免费观看| 3wmmmm亚洲av在线观看| 精品日产1卡2卡| 精品久久久久久久久亚洲| 如何舔出高潮| 国内揄拍国产精品人妻在线| 亚洲久久久久久中文字幕| 亚洲欧美成人综合另类久久久 | 国产精品野战在线观看| 国产精品日韩av在线免费观看| 中文在线观看免费www的网站| 搡女人真爽免费视频火全软件| 如何舔出高潮| 午夜福利高清视频| 国产精品嫩草影院av在线观看| av.在线天堂| 能在线免费看毛片的网站| 九九在线视频观看精品| 亚洲最大成人手机在线| 黄色日韩在线| 91在线精品国自产拍蜜月| www.av在线官网国产| 欧美成人a在线观看| 欧美激情久久久久久爽电影| 亚洲国产欧洲综合997久久,| 精品久久久噜噜| 国产精品人妻久久久影院| 真实男女啪啪啪动态图| 免费不卡的大黄色大毛片视频在线观看 | 老熟妇乱子伦视频在线观看| 亚洲aⅴ乱码一区二区在线播放| 国产毛片a区久久久久| 亚洲国产精品成人综合色| 不卡视频在线观看欧美| 一个人免费在线观看电影| 在线播放无遮挡| 亚洲最大成人av| 免费av观看视频| or卡值多少钱| 国产精品一区二区三区四区免费观看| 91久久精品国产一区二区成人| 少妇熟女aⅴ在线视频| 夜夜爽天天搞| 亚洲人成网站在线播放欧美日韩| 最近手机中文字幕大全| 看十八女毛片水多多多| 成人午夜高清在线视频| 国产精品乱码一区二三区的特点| 激情 狠狠 欧美| 麻豆一二三区av精品| 男女边吃奶边做爰视频| 成人欧美大片| 国产伦精品一区二区三区视频9| 少妇熟女欧美另类| 久久久午夜欧美精品| 欧美xxxx性猛交bbbb| 国产成人精品久久久久久| 一本一本综合久久| 日韩欧美在线乱码| 国产精品爽爽va在线观看网站| a级一级毛片免费在线观看| 国产精品三级大全| a级一级毛片免费在线观看| 亚洲欧洲日产国产| 黄色欧美视频在线观看| 爱豆传媒免费全集在线观看| 久久久久久久久久久丰满| 日韩欧美精品v在线| 麻豆av噜噜一区二区三区| 3wmmmm亚洲av在线观看| 国产91av在线免费观看| 精品一区二区免费观看| 久久久久久久亚洲中文字幕| 亚洲熟妇中文字幕五十中出| 啦啦啦观看免费观看视频高清| 听说在线观看完整版免费高清| 日本-黄色视频高清免费观看| 少妇人妻精品综合一区二区 | 又爽又黄无遮挡网站| 婷婷六月久久综合丁香| 国产激情偷乱视频一区二区| 美女内射精品一级片tv| 久久人人精品亚洲av| 午夜精品一区二区三区免费看| 免费人成视频x8x8入口观看| 91午夜精品亚洲一区二区三区| 99久久成人亚洲精品观看| 一级二级三级毛片免费看| 亚洲第一区二区三区不卡| 如何舔出高潮| 亚洲欧洲日产国产| 成人亚洲欧美一区二区av| 性欧美人与动物交配| 天堂√8在线中文| 夫妻性生交免费视频一级片| 青春草国产在线视频 | 国产av一区在线观看免费| 美女xxoo啪啪120秒动态图| 国内精品美女久久久久久| 欧美另类亚洲清纯唯美| 最近视频中文字幕2019在线8| 欧美三级亚洲精品| 老司机福利观看| 嫩草影院精品99| 国产极品精品免费视频能看的| 蜜桃久久精品国产亚洲av| 舔av片在线| 日本黄大片高清| 国内久久婷婷六月综合欲色啪| 一级二级三级毛片免费看| 欧美精品一区二区大全| 国产av一区在线观看免费|