Positive urease - Study guides, Class notes & Summaries

Procedure #1 detected 50/100 true positives & 100/100 true negatives. Procedure #2 detected 80/100 true positives and 70/100 true negatives. Answer - Procedure 2 is more sensitive (refers to % of true positives that are accurately identified as positives). Specificity refers to # of true negatives identified as negative. TP/TP+FN= Answer - Sensitivity TN/TN+FP= Answer - Specificity What might the following indicate in urine: RBCs, WBCs, nitrite, and bacteria? Answer - Pyelonephritis (UT...

B; The correct answer for this question is 1300 mg/dL. The laboratorian performed a 1:4 dilution by adding 0.25 mL (or 250 microliters) of patient sample to 750 microliters of diluent. This creates a total volume of 1000 microliters. So, the patient sample is 250 microliters of the 1000 microliter mixed sample, or a ratio of 1:4. Therefore, the result given by the chemistry analyzer must be multiplied by a dilution factor of 4. 325 mg/dL x 4 = 1300 mg/dL. After experiencing extreme fatigue...

An organism identified as Cryptococcus species can be accurately identified as Cryptococcus neoformans using which of the following characteristics? - Positive urease test - Presence of a capsule - Positive phenol oxidase test - Appearance of yellow colonies - Answer Positive phenol oxidase test Consider the following results on an isolate from a CSF specimen, growing on cornmeal agar: Blastospores = +, Pseudohyphae = -, Chlamydospores = -, Arthrospores = - Which of the following tes...

c antigen is most common in blacks and whites; anti-c would be most common reactive : Rh antibodies show enhanced reactivity with enzyme pretreated cells. The M and Fya antigens are cleaved from enzyme pretreated cells and therefore there would be no reaction between enzyme pretreated cells and serum containing anti-M or antiFya. The incidence of the c antigen is 80% in whites and 96% in blacks. The incidence of the E antigen is 29% in whites and 22% in blacks. Increased reactivity with ...

Procainamide - NAPA loose clusters of small spherical microconidia, positive urease - Trichophyton mentagrophytes BHCG tumor marker - chorocarcinoma 5HIAA - carcinoid tumors Proteus vulgaris vs P. mirabilis indole test - P. vulgaris is indole pos. P. mirabilis is indole neg Hydatid cyst fluid - used to neutralize Anti-P1 antibody Antacid overdose - Check pH Prolonged PT, PTT, and thrombin after collecting from catheter - heparin contamination mixing study that was performed with a prol...

MLS(ASCP) Test Bank | Multiple Choice| All +350 Questions With Verified Answers| 2024-25 Study Guide Multiple Choice: unconjugated bilirubinemia: i. unconjugated bilirubin=positive; urine bilirubin=positive; urine urobilinogen=positive ii. unconjugated bilirubin=negative; urine bilirubin=positive; urine urobilinogen=negative iii. unconjugated bilirubin=positive; urine bilirubin=negative; urine urobilinogen=positive iv. unconjugated bilirubin=negative; urine bilirubin=negative; ur...

Procainamide Answer - NAPA loose clusters of small spherical microconidia, positive urease Answer - Trichophyton mentagrophytes BHCG tumor marker Answer - chorocarcinoma 5HIAA Answer - carcinoid tumors Proteus vulgaris vs P. mirabilis indole test Answer - P. vulgaris is indole pos. P. mirabilis is indole neg Hydatid cyst fluid Answer - used to neutralize Anti-P1 antibody Antacid overdose Answer - Check pH Prolonged PT, PTT, and thrombin after collecting from catheter Answer ...

NBME CBSE ACTUAL TEST QUESTIONS AND ANSWERS 2024(COMPLETE) (Quiz bank with all the correct answers) (USMLE step 1)Medical examination NBME CBSE ACTUAL TEST 2024 62 year old woman - osteoporosis – a bisphosphonate is prescribed. The expected beneficial effect of the drug is due to which of the following? Decreased Osteoclast Activity Cohot Study of elderly women – relative risk ratio for hip fractures among those who exercise regularly is 1.2 (95% confidence interval of 1.1 to ...

c antigen is most common in blacks and whites; anti-c would be most common reactive : Rh antibodies show enhanced reactivity with enzyme pretreated cells. The M and Fya antigens are cleaved from enzyme pretreated cells and therefore there would be no reaction between enzyme pretreated cells and serum containing anti-M or antiFya. The incidence of the c antigen is 80% in whites and 96% in blacks. The incidence of the E antigen is 29% in whites and 22% in blacks. Increased reactivity with ...

Procainamide - NAPA loose clusters of small spherical microconidia, positive urease - Trichophyton mentagrophytes BHCG tumor marker - chorocarcinoma 5HIAA - carcinoid tumors Proteus vulgaris vs P. mirabilis indole test - P. vulgaris is indole pos. P. mirabilis is indole neg Hydatid cyst fluid - used to neutralize Anti-P1 antibody