Urinary tract infection (UTI) is an important health problem affecting millions of people each year. A significant high incidence of UTI can be seen in individuals with disabilities, especially those with paralysis due to spinal cord injury. Dip stick screening tests may offer promise as an early warning system of UTI since they are easy to perform and can be self-administered. Here, we report our experience of the diagnostic value of the urine strip test for white blood cell count in medical laboratory practice. The sensitivity of urine strip test was 100%, the specificity 92.2%, the positive predictive value 33.8% and the negative predictive value 100%. False positive was 7.8% and false negative 0%. This can confirm the needs for further examination in cases with positive urine strip screening test. Hence, the usage of urine strip examination as a screening tool for pyuria, an early sign of UTI among people with disabilities is recommended.
In Laboratory medicine, urine pregnancy test is an easily available diagnostic test in the present day. Only a few recent studies have estimated population pregnancy rates using objective, laboratory-based criteria. Here, the authors performed a study on laboratory-measured pregnancy rates and their correlation to marital status in a tertiary hospital in Thailand. This study can be not only good information in medical aspect but also in social aspect. The data from medical records of the female patients who got diagnostic urine pregnancy test at Division of Laboratory Medicine, King Chulalongkorn Memorial Hospital, Bangkok Thailand during August 2004 to December 2004 were reviewed. Descriptive statistic was used on the data where it was appropriate. There were 1005 medical records reviewed in this study. From total medical records, there was no subject who is younger than 10-years-old. The diagnostic test results were positive in 121 cases (12.0%) and negative in 884 cases (88.0%). Classified by marital status, we found that most were married. The laboratory-measured pregnancy rates in the single and married group are 15.1% and 9.7%, respectively. There is a significant higher rate among the single group. High percentage of pregnancy group can imply for unplanned and teenage pregnancy. On interest, those types of problematic pregnancy can bring both medical and social problems.
Background Urine Pregnancy is an easily available diagnostic test in the present day. Sometimes, repeated analysis is requested to the laboratory for confirmation purpose. Here, the authors assess the stability of the urine sample keeping in refrigerator for repeated analysis. Method The authors collected 44 urine samples sending for urine pregnancy test in the refrigerator with temperature equal to 4°C waiting for repeated analysis. The comparison between the results from repeated analysis and first analysis was performed. Results The repeatability is 100% for the range of urine samples keeping in the refrigerators ranging from 1 day 9 days. Discussion It means that the urine sample can be kept for repeated analysis for the requested cases in the refrigerator for upto 9 days. In addition, the delayed in specimen transportation in case of holidays for 2 -3 days has no serious effect on the analysis for urine pregnancy test. Also, the result from this study can imply that positive urine sample might be kept as control materials for urine pregnancy within the laboratory.
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