336 results
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
False Positives on Urine ... levofloxacin, ofloxacin, poppy ... seeds, poppy oil ... FalsePositives #Urine
False Positive Urine Drug Screens
Amphetamines - Amantadine, brompheniramine. bupropion, chlorpromazine, desipramine, ephedrine, isometheptene, isoxsuprine, labetalol, phentermine,
False Positive Urine ... fluoroquinolones, poppy ... Positive #UDS #Urine
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Drug Tests Urine ... (Benadryl) • Poppy
Causes Abnormal Urine Color - Differential Diagnosis
Turbid White Urine (Albinuria):
 • Chyluria, Filariasis, Schistosomiasis, Malignancy, Phosphaturia,
Causes Abnormal Urine ... listed under green urine ... listed under green urine ... * Green Urine: ... : • Purple Urine
Normal Anion-Gap Acidosis (NAGMA) - Differential Diagnosis Framework and Workup

NAGMA
- Chem, ABG or VBG
- Calculate Anion
Gap - UAG and Urine ... gap - UA with urine ... Gap - Estimate urine ... (+) NH4 in the urine ... - Renal • Urine
Urine Microscopy Guide

#Diagnosis #Path #Nephrology #Urine #Microscopy #Chart #Guide #atlas
Urine Microscopy ... Path #Nephrology #Urine
Urine Microscopy Crystals
Uric Acid crystals:
 - Formation promoted by acidic urine
 - Seen in tumor lysis
Urine Microscopy ... promoted by acidic urine ... promoted by alkaline urine ... independent of urine ... independent of urine
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
examination, check urine ... uric acid: - Urine ... hyponatremia - Urine
Urine Color - Differential Diagnosis
Red Urine:
 • Medical conditions: bleeding, porphyria, factitious disorder
 • Meds: rifampin,
Urine Color - Differential ... Diagnosis Red Urine ... spinach) Orange Urine ... red or orange urine ... ) Purple Urine:
Normal urine output 
- 0.5 to 1.5 cc/kg/hour 
- A patient should be urinating at least
Normal urine output ... - Decreased urine ... No or minimal urine ... in adults #urine