Negative urine test results
[PDF File]Guide to Negative Test Result Interpretation
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case, the patient had a negative drug screen despite chronic use of clonazepam. What does this negative urine drug screen mean? Should the physician be concerned about false negative results in this case? Or should the physician suspect diversion? First, it is important to understand the type of test performed.
[PDF File]How to correctly interpret a urine drug screen result
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•Screening test for bacteriuria •Reflects presence of >10(5)CFU of Enterobacteriaceae per ml of urine •Relies on ability of gram-negative bacteria to convert nitrate nitrite •False negative can occur 1. Bacteria that cannot convert nitrate nitrite: EX: Enterococcos 2. Presence of ascorbate 3. Retention of urine in bladder
[PDF File]INTERPRETING URINALYSIS AND URINE CULTURE RESULTS
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Key points: Urine test results . Acute care | Adults. 1.Urinalysis (UA)–macroscopy / dipstick. 2. Urine Culture. Positive UA or dipstick. leukocytes ≥ 1+, o. r >5 WBC/hpf on microscopy Positive urine culture. 10^6 CFU/L: May be a significant colony count if patient has UTI symptoms. Negative urine culture Negative UA. leukocytes negative or ...
[PDF File]Negative Urine Drug Screen in a Patient with Chronic ...
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NEGATIVE NEGATIVE NEGATIVE Out Of Range and reference CLOUDY TRACE Reference Range YELLOW range (g) CLEAR 1.001-1.035 5.0-8,0 NEGATIVE NEGATIVE NEGATIVE NEGATIVE NEGATIVE NEGATIVE NEGATIVE WBC/HPF RBC/HPF Appeaznance Specific Gravity pH Glucoøe Bilirubin Ke t one Occult Blood Protein Nitrite Leukocyte Beterage Urine …
INTERPRETING URINE DRUG TEST RESULTS - Nationwide Medical …
Guide to Negative Test Result Interpretation Negative Throat Culture ... If your symptoms continue despite a negative urine culture test result, please seek follow-up evaluation. If you have already started antibiotics, please contact CityMD so that we can decide if ... Your test results were negative for Lyme disease as determined by the CDC ...
[PDF File]Key Point: Urine test results - Alberta Health Services
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So what if the test result is wrong? Talk to patient! •Discuss rationale for testing •Means of supporting recovery, not for punitive purpose •Review test? •Results, pH, urine concentration •Review medication list? •Consider possibility of false-positive •Consider discussing with an expert (pathologist, pharmacist, chemist)
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