27 results
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False ... Drug Screens (UDS ... (High Rate of False ... DrugScreening #UDS ... #Testing #Laboratory
PFO with shunting on Contrast Echocardiogram (a4c) 
74 yo presents with CVA. RoPE score of 4.
Echocardiogram (a4c ... MD, FACP, FACC, FASE ... Echocardiogram #a4c ... clinical #cardiology #pocus
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
that may cause false ... #DrugScreens #UDS ... FalsePositive #Testing
Agents Causing Potential False-Positive Results With Urine Drug Screening 

#Urine #DrugScreens #UDS #Laboratory #Toxicology #Diagnosis #FalsePositive
Causing Potential False-Positive ... #DrugScreens #UDS ... FalsePositive #Testing
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 ... Specificity and False ... BAL samples • False ... not available in US ... Galactomannan #Fungal #Testing
Lung POCUS for Diagnosis of CHF - Visual Abstract
What is the accuracy of combined Lung Ultrasound
Lung POCUS for Diagnosis ... Ultrasound: - AUC ... + pro-BNP: - AUC ... podcasts.apple.com/us ... heart #failure #POCUS
LV Pseudoaneurysm

• False “pseudo” aneurysm: rupture w/ blood contained *outside* wall layers. (case below)

• True aneurysm:
Pseudoaneurysm • False ... Ventricular #Clinical #POCUS ... CardiacMRI #PSAX #A4C
Fungal Biomarkers: Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 • Pathogens:
breakthrough IFI in HM • False ... not available in US ... recipients, CGD pts • False ... Frozen ice-pops (in setting
Constrictive Pericarditis on Echocardiogram
A 55-year-old female marathon runner presents to clinic w/ 6-months of worsening breathlessness
expiration not meeting ... Echocardiogram #a4c ... #pocus #clinical
Blood Product Transfusions One Pager Summary
Type and screen - determines blood type and detects in recipient
Crossmatch - involves testing ... antigens (often false ... negatives on testing ... RBCs (stored at 4C ... country) - False