15 results
Agents Causing Potential False-Positive Results With Urine Drug Screening 

#Urine #DrugScreens #UDS #Laboratory #Toxicology #Diagnosis #FalsePositive
Toxicology #Diagnosis #FalsePositive ... #Testing
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
Toxicology #Diagnosis #FalsePositive ... #Testing
What is Fecal Occult Blood Testing (FOBT)
 • Screening for colorectal cancer in average risk population
Fecal Occult Blood Testing ... the ambulatory setting ... to unnecessary testing ... #OccultBlood #Testing ... #FOBT #Guaiac #FalsePositives
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
#FalsePositives ... DrugScreening #UDS #Testing
Causes of Inaccurate Fecal Occult Blood Test Results 

False Positive gFOBT:
Ingestion of nonhuman heme (eg, meat
#OccultBlood #Testing ... #Laboratory #FalsePositive
1,3-Beta-D-Glucan and Galactomannan Testing Sensitivity Specificity and False Positives
1,3-Beta-D-Glucan
 • Cell wall component of many fungi
Galactomannan Testing ... Galactomannan #Fungal #Testing ... #FalsePositives
Severe Hydronephrosis on POCUS

Based on this clip, which of the following is most likely abnormal?
Resolution: creatinine
Hydronephrosis on POCUS ... elevated in the setting ... Labeled Schematic ... Hydronephrosis #POCUS
Gallbladder Distension on POCUS

Gallbladder viewed in long-axis plane (sagittal on body).
Normal gallbladder dimensions are up to
Distension on POCUS ... also occurs in setting ... of fasting. ... Distension #Distended #POCUS ... clinical #ultrasound #labeled
Dilated Stomach on POCUS

This coronal plane view of the stomach can be helpful in the setting
Dilated Stomach on POCUS ... helpful in the setting ... Stomach #Gastric #POCUS ... clinical #anatomy #labeled
McConnell's Sign on POCUS Echocardiogram - PSAX
Positive McConnell's Sign (hypokinetic RV with apical sparing) indicates acute
McConnell's Sign on POCUS ... embolism in the right setting ... McConnells #Sign #POCUS ... clinical #cardiology #labeled