644 results
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Differential Diagnosis Algorithm ... blood cells on urine ... Must exclude false ... Differential #Diagnosis #Algorithm ... #Causes
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Medications that Can Cause ... False Positives ... Drug Tests Urine ... medications can cause ... Protonix), may cause
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
Causes of Proteinuria ... Differential Diagnosis Algorithm ... Proteinuria (Negative urine ... Differential #Diagnosis #Algorithm ... #Causes
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Differential Diagnosis Algorithm ... Urine Output > ... Water Diuresis (Urine ... Differential #Diagnosis #Algorithm ... #causes #nephrology
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
and Diagnosis Algorithm ... WBCs, or urine ... proteinuria, RBC casts ... Nephrology if cause ... Hematuria #Diagnosis #Algorithm
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
Urine Drug Screens ... drugs that may cause ... false positive ... Diphenhydramine #Urine
Causes of Metabolic Alkalosis - Differential Diagnosis Algorithm
Urine chloride < 20 mmol/l - Chloride responsive (Chloride
Causes of Metabolic ... Differential Diagnosis Algorithm ... Urine chloride ... diuretic use Urine ... Metabolic #Alkalosis #Causes
Causes of False Elevation and Reduction in HbA1c

== False Elevation ==
Decreased RBC turnover 
• Iron, B-12,
Causes of False ... in HbA1c == False ... Transfusions == False ... Transfusions #False
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False ... Positives on Urine ... (High Rate of False ... not result in false ... FalsePositives #Urine
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
Causes of Polyuria ... Differential Diagnosis Algorithm ... Polyuria - Urine ... Differential #Diagnosis #Algorithm ... #Causes