scholarly journals Interference in Serum Lithium Estimation by Silica Clot Activator and Silicone Surfactant in ISE Principle: a Cross-Sectional Study

2017 ◽  
Vol 8 (2) ◽  
pp. 60-65 ◽  
Author(s):  
L Naznin ◽  
D Saha ◽  
S Sultana ◽  
MMK Sarkar

Serum lithium concentration is monitored to ensure patient's compliance and to avoid intoxication and thus it is a prerequisite for an individual's dose adjustment. An unavoidable error during lithium estimation in blood collected in 'red-top plastic vacutainer plus tube containing silica clot activator and silicone surfactant' by ISE appeared as a reality for a standard laboratory like AFIP. The error could not be detected even by proven internal and external QC. This cross-sectional study was carried out at AFIP Chemical Pathology Department from May' 2015 to July'2015 to find out the interference causing falsely elevated serum lithium concentration by ISE principle. Blood were collected from the 40 study subjects including 30 healthy volunteers, who never took Tab Lithium and 10 patients, who used to take Tab Lithium for bipolar mood disorder in both 'plain red-top plastic vacutainer tubes without additive' as well as 'plain red-top plastic vacutainer plus tube containing silica clot activator and silicone surfactant'. Lithium concentrations were estimated in both types of tubes by Ion-Selective Electrode (ISE) principle employing world class, USA manufactured analyzer NOVA-4 as well as by colorimetric method using Dade Dimension, Siemens. Serum lithium concentrations were undetectable for the 'lithium-free normal volunteers' in both types of tubes measured by colorimetry but in ISE principle it was undetectable when collected in plain test tube without additives but when collected in 'vacutainer plus tube containing silica clot activator and silicone surfactant' and measured by ISE technique, the mean serum lithium concentration was found to be 1.78 ±0.40 mmol/l. Besides, mean serum lithium concentration of 10 individuals taking Tab Lithium had no statistically significant difference while measured by ISE or colorimetry in 'vacutainer tubes without additive' and also in 'vacutainer plus tubes containing silica clot activator and silicone surfactant' measured by colorimetry. But, vacutainer plus tubes containing silica clot activator and silicone surfactant' while measured serum lithium concentration by ISE principle had significant (p <0.001) increase in mean concentration than others, as determined by one-way ANOVA and Post-hoc tests. This study demonstrates that positive interference; caused by silica clot activator and silicone surfactant of the collection tubes; increases measured concentration of lithium. This interference; being in the pre-analytic phase, cannot be detected by routinely performed laboratory quality control.Bangladesh J Med Biochem 2015; 8(2): 60-65

2019 ◽  
Vol 7 (2) ◽  
pp. 47-51
Author(s):  
Suci Syahril ◽  
Meldafia Idaman ◽  
Dewi Fransisca

Abstract The use of contraceptive depot medroxyprogesterone acetate (DMPA) increasing lately, but some studies suggest has the side effects of weight gain and contraceptives that have side effect in lipid metabolism. Therefore, about 35% of acceptors of DMPA in the first year to stop the use of DMPA. The objective of this study was to determine the differences of lipid profile between acceptors DMPA with acceptors IUD. This was a obcervational study with cross sectional study. The study wasdone at health center Lubuk Buaya in Padang and at laboratory of Biochemistry Departement in Medical Faculty of Andalas University from Januari until September 2016. The subjects were consisted of two groups, each group had 26 subjects. The examination for LDL and HDL used an enzymatic colorimetric method CHOD-PAP.  Data was analyzed using analysis of t-test with p < 0.05 was considered to be significantly different. HDL levels average in Depo Medroxyprogesterone Acetate was 87,54±14,28 mg/dl and IUD was 75,90±8,67 mg/dl with p < 0.05 (significantly difference). Levels of  LDL means there is no significantly difference between DMPA and IUD acceptors (p> 0.05). This research concluded that there isa significant difference on average levels of HDL in the Depo Medroxyprogesterone Acetate and IUD but levels of LDL there is no significantly difference. The clinically lipid profile in the two groups is in normal range.  


2015 ◽  
Vol 4 (1) ◽  
Author(s):  
Rafika Oktova ◽  
Desmiwarti Desmiwarti ◽  
Arni Amir

AbstrakDepo Medroksiprogesteron Asetat dan Implant Levonorgestrel merupakan kontrasepsi hormonal progestin sintetik yang memiliki efek samping yaitu peningkatan berat badan dan mempengaruhi metabolisme lipid. Tujuan penelitian ini adalah untuk mengetahui perbedaan profil lipid pada akseptor Depo Medroksiprogesteron Asetat dengan Implant Levonorgestrel. Ini adalah studi observasional dengan desain cross sectional comparative. Penelitian dilakukan di laboratorium Bagian Biokimia Fakultas Universitas Andalas dari Maret sampai Mei 2014. Subjek penelitian terdiri dari dua kelompok, masing-masing 20 subjek. Pemeriksaan dengan metode enzimatis kolorimetri yaitu GPO-PAP untuk trigliserida, dan CHOD-PAP untuk kolesterol total, HDL dan LDL. Data dianalisis menggunakan uji t dengan nilai p<0.05 dianggap bermakna secara statistik. Rerata kadar LDL pada Depo Medroksiprogesteron Asetat lebih tinggi (95,51 ± 20,47) mg/dl daripada Implant Levonorgestrel (79,35 ± 12,55) mg/dl dengan nilai p<0,05 artinya terdapat perbedaan yang bermakna sedangkan kadar trigliserida, kolesterol total dan HDL tidak bermakna. Kesimpulan penelitian in adalah terdapat perbedaan yang bermakna rerata kadar LDL pada Depo MedroksiprogesteronAsetat dan Implant Levonorgestrel, sedangkan kadar trigliserida, kolesterol total dan HDL tidak bermakna. Secara klinis profil lipid pada kedua kelompok dalam keadaan normal.Kata kunci: profil lipid, depo medroksiprogesteron asetat, implant levonorgestrelAbstractDepo Medroxyprogesterone Acetate and Levonorgestrel Implants are synthetic progestine hormonal contraceptives that have side effect in body weight and lipid metabolism. The objective of this study was to determine the differences of lipid profile between acceptors Depo Medroxyprogesterone Acetate and Levonorgestrel Implants. This was a comparative cross sectional study. The study was done at laboratory of Biochemistry Departement in Medical Faculty of Andalas University from March until May 2014. The subjects were consisted of two groups, each group had 20 subjects. The examination used an enzymatic colorimetric method GPO-PAP for trygliserides and CHOD-PAP for total cholesterol, HDL and LDL. Data was analyzed using analysis of t-test with p<0.05 was considered to be significantly different. LDL levels average in Depo Medroxyprogesterone Acetate was (95,51 ± 20,47) mg/dl and Levonorgestrel Implants was (79,35 ± 12,55) mg/dl with p-value, it means there is a significantly difference, but levels of trygliserides, total cholesterol and HDL means there is no significantly difference. This research concluded that there is a significant difference on average levels of LDL in the Depo Medroxyprogesterone Acetate and Levonorgestrel Implants but levels of trygliserides, total cholesterol and HDL there is no significantly difference. The clinically lipid profile in the two groups is in normal range.Keywords: lipid profile, depo medroxyprogesterone acetate and levonorgestrel implants


2014 ◽  
pp. 90-93
Author(s):  
Van Tuan Nguyen ◽  
Tam Vo ◽  
Bui Bao Hoang

Elevated serum Transforming growth factor-beta1 (TGF-beta1) levels have been linked to tissue fibrosis including chronic kidney disease. Objectives: (1) Investigate serum TGF-beta1 levels in healthy adult people and (2) Examined the relation between serum TGF-beta1 level and gender, age, body mass index (BMI). Method: A cross-sectional study. TGF-beta1 were quantified by ELISA. Results: Levels of serum TGF-beta1 in healthy people were 13,45 ± 7,17 ng/mL mL (0,59 - 33,10 ng/mL). There are no difference of serum TGF-beta1 levels between men and women, between the age groups (<40 years, 40 to < 60 years and ≥ 60 years), between BMI groups < 23 and BMI group ≥ 23. Key words: TGF-beta1, healthy people


BMJ Open ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. e046265
Author(s):  
Shotaro Doki ◽  
Shinichiro Sasahara ◽  
Daisuke Hori ◽  
Yuichi Oi ◽  
Tsukasa Takahashi ◽  
...  

ObjectivesPsychological distress is a worldwide problem and a serious problem that needs to be addressed in the field of occupational health. This study aimed to use artificial intelligence (AI) to predict psychological distress among workers using sociodemographic, lifestyle and sleep factors, not subjective information such as mood and emotion, and to examine the performance of the AI models through a comparison with psychiatrists.DesignCross-sectional study.SettingWe conducted a survey on psychological distress and living conditions among workers. An AI model for predicting psychological distress was created and then the results were compared in terms of accuracy with predictions made by psychiatrists.ParticipantsAn AI model of the neural network and six psychiatrists.Primary outcomeThe accuracies of the AI model and psychiatrists for predicting psychological distress.MethodsIn total, data from 7251 workers were analysed to predict moderate and severe psychological distress. An AI model of the neural network was created and accuracy, sensitivity and specificity were calculated. Six psychiatrists used the same data as the AI model to predict psychological distress and conduct a comparison with the AI model.ResultsThe accuracies of the AI model and psychiatrists for predicting moderate psychological distress were 65.2% and 64.4%, respectively, showing no significant difference. The accuracies of the AI model and psychiatrists for predicting severe psychological distress were 89.9% and 85.5%, respectively, indicating that the AI model had significantly higher accuracy.ConclusionsA machine learning model was successfully developed to screen workers with depressed mood. The explanatory variables used for the predictions did not directly ask about mood. Therefore, this newly developed model appears to be able to predict psychological distress among workers easily, regardless of their subjective views.


BMJ Open ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. e043814
Author(s):  
Mesfin Tadese ◽  
Andargachew Kassa ◽  
Abebaw Abeje Muluneh ◽  
Girma Altaye

ObjectivesThe study aimed to provide an association between dysmenorrhoea and academic performance among university students in Ethiopia. Further, the study attempts to determine the prevalence and associated risk factors of dysmenorrhoea.Design and methodInstitution-based cross-sectional study was conducted from 1 April to 28 April 2019. A semistructured and pretested self-administered questionnaire was used to collect data. Binary logistic regression analysis and one-way analysis of variance were performed to model dysmenorrhoea and academic performance, respectively.Setting and participantsEthiopia (2019: n=647 female university students).OutcomesThe primary outcome is dysmenorrhoea, which has been defined as painful menses that prevents normal activity and requires medication. The self-reported cumulative grade point average of students was used as a proxy measure of academic performance, which is the secondary outcome.ResultsThe prevalence of dysmenorrhoea was 317 (51.5%). The educational status of father (adjusted OR (AOR) (95% CI) 2.64 (1.04 to 6.66)), chocolate consumption (AOR (95% CI) 3.39 (95% 1.28 to 8.93)), daily breakfast intake (<5 days/week) (AOR (95% CI) 0.63 (0.42 to 0.95)), irregular menstrual cycle AOR (95% CI) 2.34 (1.55 to 3.54)) and positive family history of dysmenorrhoea AOR (95% CI) 3.29 (2.25 to 4.81)) had statistically significant association with dysmenorrhoea. There was no statistically significant difference in academic performance among students with and without dysmenorrhoea (F (3611)=1.276, p=0.28)).ConclusionsDysmenorrhoea was a common health problem among graduating University students. However, it has no statistically significant impact on academic performance. Reproductive health officers should educate and undermine the negative academic consequences of dysmenorrhoea to reduce the physical and psychological stress that happens to females and their families.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Abeer Alharbi ◽  
Joharah Alzuwaed ◽  
Hind Qasem

Abstract Background The Ministry of Health in Saudi Arabia is expanding the country’s telemedicine services by using advanced technology in health services. In doing so, an e-health application (app), Seha, was introduced in 2018 that allows individuals to have face-to-face visual medical consultations with their doctors on their smartphones. Objective This study evaluated the effectiveness of the app in improving healthcare delivery by ensuring patient satisfaction with the care given, increasing access to care, and improving efficiency in the healthcare system. Methods A cross-sectional study design was used to assess the perceptions of users of the Seha app and non-users who continued with traditional health services. The data were collected using an online survey via Google Forms between June 2020 and September 2020. Independent t tests and chi-square (χ2) tests were conducted to answer the research questions. Results There was a significant difference between users and non-users in terms of ease of access to health services (t =  − 9.38, p < 0.05), with app users having a higher mean score (4.19 ± 0.91) than non-users (3.41 ± 1.00); satisfaction with health services (t =  − 6.33, p < 0.05), with users having a higher mean score (3.96 ± 0.91) than non-users (3.45 ± 0.94); and efficiency (only one visit needed for treatment) (t =  − 3.20, p < 0.05), with users having a higher mean score (3.71 ± 0.93) than non-users (3.45 ± 0.93). There were significant associations between the use of the Seha app and age (χ2 = 8.79, p < 0.05), gender (χ2 = 22.19, p < 0.05), region (χ2 = 19.74, p < 0.05), and occupation (χ2 = 22.05, p < 0.05). There were significant relationships between the three items (on access, satisfaction, and efficiency) and experiencing technical issues (t = 4.47, t = 8.11, and t = 3.24, respectively, p < 0.05), with users who faced technical problems having significantly lower mean scores for all three items. Conclusion This study provided evidence that the Seha app improved the delivery of healthcare in Saudi Arabia. Users of the app had a better health experience in terms of their perceived ease of access to healthcare services; their satisfaction with healthcare services; and the efficiency of the system, measured by the number of required doctor visits. Other factors that appeared to influence the use of the app included age, gender, usual source of care, and technical difficulties.


2019 ◽  
Vol 90 (3) ◽  
pp. e31.1-e31
Author(s):  
T Samuel ◽  
K Aquilina ◽  
W Dawes

ObjectivesTo investigate the current understanding parents have of concussion in their rugby-playing children aged 9–17.DesignCross-sectional studySubjects86 parents from four clubs completed an online questionnaireMethodsAreas covered (1) Parental experience of concussion (2) Rate of viewing of the RFU concussion educational video (RFUCEV), (3) Identification of symptoms of concussion (4) Understanding of the risk of concussion. Each participant was given a composite score, out of 19, based on their performance in symptom identification and true/false questions. Independent-sample two-tailed t-tests were conducted to analyse scores, primarily controlling for viewing of the RFUCEVResultsThere was a significant difference in the scores between the group that had viewed the RFUCEV (n=32, M=14.75, SD=2.55) and those who had not (n=54, M=13.05, SD=2.87); t(84)=2.75, p=0.00721. Additionally, over 25% of parents reported that their child had suffered a concussion, and this was also found to significantly improve the awareness score (p=0.04678)ConclusionsStatistically significant improvement in composite scores after viewing the RFUCEV makes it reasonable to require compulsory parental education prior to signing up a child to play rugby. This would build on the protocol changes made by the RFU in 2014 and further progress the safety of the sport. We suggest the video be improved to emphasise the areas highlighted as inadequately understood, including the increased risk of concussion in under-18s compared to adults.


2014 ◽  
Vol 26 (3) ◽  
pp. 447-453 ◽  
Author(s):  
Whye Lian Cheah ◽  
Hazmi Helmy ◽  
Ching Thon Chang

Abstract Rural communities have shown marked increase in metabolic syndrome among young people, with physical inactivity as one of the main contributing factors. This study aimed to determine factors associated with physical inactivity among male and female rural adolescents in a sample of schools in Malaysia. A cross-sectional study was conducted among 145 students aged 13–15 years. Data on socio-demographic, health-related, and psychosocial factors (perceived barriers, self-efficacy, social influences) were collected using a self-administered questionnaire. Anthropometric measurement was taken to generate body mass index (BMI)-for-age, while physical activity (PA) level was assessed using pedometers. The mean steps per day was 6251.37 (SD=3085.31) with males reported as being more active. About 27% of the respondents were either overweight or obese, with more females in this group. There was no significant difference in steps among males and females (p=0.212), and nutritional status (BMI-for-age) (p=0.439). Females consistently scored higher in most items under perceived barriers, but had significantly lower scores in self-efficacy’s items. Males were more influenced by peers in terms of PA (p<0.001) and were more satisfied with their body parts (p=0.047). A significantly higher body size discrepancy score was found among females (p=0.034, CI –0.639, –0.026). PA level was low and almost one-third of the respondents were overweight and obese. Female students faced more barriers and had lower self-efficacy with regards PA. Based on the findings, it is recommended that interventions focus on reducing barriers while increasing support for PA. This is particularly important in improving the health status of the youth, especially among the females.


2021 ◽  
Author(s):  
Mohammad Nour Shashaa ◽  
Mohamad Shadi Alkarrash ◽  
Mohammad Nour Kitaz ◽  
Roaa Rhayim ◽  
Mohammed Ismail ◽  
...  

Abstract Background Sudden cardiac arrest considers one of the most leading cause for death in all over the world. It is important for all medical students to train basic life support. This study evaluated the awareness of basic life support among medical students. Methods An electronic questionnaire based cross sectional study was conducted in November 2020 among 2114 medical student in Syria, Iraq and Jordan. We evaluated BLS skills according to mean score. A chi-squared test was used to determine if there were differences between those who attended a basic life support course and those who did not. Results 1656 of the participants (78.3%) stated that they did not attend a basic life support course. There was a significant difference between the participants from different countries where the mean score in Syria, Jordan and Iraq was 18.3, 24.3 and 18.8 respectively (p < 0.05). The participants were divided into 3 level according to total score; low (0–12), moderate (13–24) and high (25–37). In total, 18.3%, 72.8% and 8.9% of participants had high, intermediate and low level respectively. Conclusions The overall knowledge of basic life support among medical students is not adequate and need significant improvements. This study showed that an attendance a basic life support course previously had an effect on knowledge level. Hence, there is an urgent need to apply basic life support courses into the pre-clinical stage at universities.


2017 ◽  
Vol 41 (1) ◽  
pp. 27
Author(s):  
Meriah Sembiring ◽  
Iskandar Iskandar ◽  
Amir Syarifuddin ◽  
Bistok Saing

The aim of this study was to determine the developmental retardation of infants of two years of age who were delivered by vacuum extraction. This cross-sectional study examined 44 infants delivered by vacuum extraction, comprising 25 males and 19 females who were born in Tembakau Deli and St. Elizabeth Hospitals, between August 1993 until February 1994. The examination included interview and physical examination in the patient's house. Chi-square statistics analysis was used with a significant level of 95% (1'=0.05). The results showed Ihat of the 44 infants delivered by vacuum extraction. 28 (32%) had had were found with mild asphyxia, while 2 infants (5%). whose mothers work as private clerk and entrepreneur, had development retardation. We concluded that there was no significant difference in development between infants delivered by vacuum extraction and those who were born spontaneously. Developmental retardation was found in infants whose mothers lack time to communicate.


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