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Dipstick Testing (dipstick + testing)

Distribution by Scientific Domains
Medical Sciences100%

Kinds of Dipstick Testing

  • urine dipstick testing
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    Selected Abstracts

    Proteinuria on dipstick urine analysis after sexual intercourse

    BJU INTERNATIONAL, Issue 1 2006
    LIRAN DOMACHEVSKY
    OBJECTIVE To examine the role of sexual intercourse as a cause of proteinuria, and establishes its duration, as a knowledge of benign causes of proteinuria is required to avoid unnecessary testing. SUBJECTS AND METHODS Twenty-four married couples were instructed to produce a urine sample before and after sexual intercourse; their urine was tested for proteinuria by dipstick analysis. RESULTS Samples were assayed from 22 men and 11 women. Whereas none of the 24 men originally assessed for the study had proteinuria before sexual intercourse, six of the 22 who were eventually enrolled had proteinuria after intercourse (27.3%, 95% confidence interval, 10,50%; P = 0.008). None of the women had proteinuria after sexual intercourse (95% confidence interval, 70,100%). The time to disappearance of proteinuria was <12 h. CONCLUSION Sexual intercourse is confirmed as a benign cause of proteinuria in men. Whenever possible, it is wise to avoid sexual intercourse at least 12 h before urinary dipstick testing. [source]

    Is microscopic haematuria a urological emergency?

    BJU INTERNATIONAL, Issue 4 2002
    M.A. Khan
    Objective ,To determine the prevalence of urological pathology in a retrospective and prospective study of patients with microscopic haematuria attending a haematuria clinic. Patients and methods ,Between January 1998 and May 2001, 781 patients attended the haematuria clinic; of these, 368 (47%; median age 60 years, range 18,90) had a history of microscopic haematuria, as detected by urine dipstick testing. These patients were investigated by urine culture and cytology, renal ultrasonography, intravenous urography (IVU), flexible cystoscopy, urea and electrolyte analysis, and assay of prostate specific antigen (PSA) where appropriate. Results ,Urine cytology showed no malignant cells in any patient with a history of microscopic haematuria. In 143 patients (39%), urine cytology showed no red blood cells and all other investigations were normal. Of the remaining 225 patients, IVU showed a tumour in one (bladder), renal stones in 15 and an enlarged prostate in two. Renal ultrasonography detected no additional pathology. Urine analysis showed one urinary tract infection. Flexible cystoscopy detected five patients with a bladder tumour (all G1pTa), two urethral strictures, five bladder stones and enlarged prostates, six enlarged prostates only, and nine red patches in the bladder, showing one patient with carcinoma in situ . No PSA levels were suggestive of prostate cancer. Conclusion ,Patients with dipstick-positive haematuria should be re-assessed by urine microscopy before referral. As only 1.4% of patients had a malignant pathology (all noninvasive), microscopic haematuria should be regarded as a separate entity from macroscopic haematuria, and such patients do not need to be referred urgently. [source]

    A study comparing various noninvasive methods of detecting bladder cancer in urine

    BJU INTERNATIONAL, Issue 4 2002
    A. Saad
    Objectives To compare the nuclear matrix protein (NMP)-22 assay, bladder tumour specific antigen (BTAstat) test, telomerase activity (using the telomeric repeat amplification protocol assay, TRAP) and a haemoglobin dipstick test for their ability to replace voided urine cytology (VUC) for detecting bladder cancer. Patients and methods The study included 120 urological patients prospectively recruited and assessed before surgery. A single freshly voided urine sample (,100 mL) was collected from each patient and aliquoted for each test. All assays were conducted according to the manufactures' guidelines; 79 patients were tested for telomerase activity. The results were then compared with VUC and the diagnosis confirmed by cystoscopy and histology. Results Fifty-two patients had histologically confirmed transitional cell carcinoma. The overall sensitivity for BTAstat, NMP22, telomerase, VUC and dipstick testing was 63%, 81%, 84%, 48% and 50%, respectively. Combining the results for telomerase and NMP22 gave a sensitivity of 100%. For G1 tumours the respective sensitivities were 23%, 62%, 56%, 23% and 15%, for G2 tumours, 68%, 86%, 92%, 50% and 41% and for G3 tumours 88%, 88%, 100%, 71% and 82%. For pTa tumours the respective detection rates were 48%, 70%, 84%, 39% and 30%, for pT1 tumours 80%, 90%, 90%, 50% and 50%, for pT2/pTis tumours, 100/100%, 100/100%, 100/100%, 88/100% and 88/83%. The overall specificity for the respective tests was 82%, 87%, 93%, 87% and 54%; combining the results of NMP22 and telomerase activity increased the specificity to 96%. Conclusions There was significantly better detection than VUC when using the NMP22 and TRAP assay, especially for well-differentiated (P < 0.001 and 0.0027, respectively) and superficial tumours (P < 0.001 and 0.034, respectively). Combining the results of NMP22 and telomerase activity yielded values comparable with cystoscopy. [source]

    Diagnostic performance of urine dipstick testing in children with suspected UTI: a systematic review of relationship with age and comparison with microscopy

    ACTA PAEDIATRICA, Issue 4 2010
    R Mori
    Abstract Background:, Prompt diagnosis of urinary tract infection (UTI) in children is needed to initiate treatment but is difficult to establish without urine testing, and reliance on culture leads to delay. Urine dipsticks are often used as an alternative to microscopy, although the diagnostic performance of dipsticks at different ages has not been established systematically. Method:, Studies comparing urine dipstick testing in infants versus older children and urine dipstick versus microscopy were systematically searched and reviewed. Meta-analysis of available studies was conducted. Results:, Six studies addressed these questions. The results of meta-analysis showed that the performance of urine dipstick testing was significantly less in the younger children when compared with older children (p < 0.01). Positive likelihood ratio (LR) of both nitrite and leucocyte positive 38.54 [95% confidence interval (CI) 22.49,65.31], negative LR for both negative 0.13 (95% CI 0.07,0.25) are reasonably good, and those for young infants are less reliable [positive LR 7.62 (95% CI 0.95,51.85) and negative LR 0.34 (95% CI 0.66,0.15)]. Comparing microscopy and urine dipstick testing, using bacterial colony count on urine culture showed no significant difference between the two methods. Conclusion:, Urine dipstick testing is more effective for diagnosis of UTI in children over 2 years than for younger children. [source]