15 results
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Tuberculosis Testing ... (TST) False-negative ... recommended because false-negative ... #Tuberculosis #Testing ... #Diagnosis #Workup
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
drugs that may cause ... false positive ... Ibuprofen, Ketamine, Tramadol ... FalsePositive #Testing
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
Algorithm INDICATIONS ... evaluation or workup ... 1,500 cells/µL Workup ... for secondary causes ... eosinophilia (common causes
Hypereosinophilia Different Diagnosis and Workup
Secondary causes are broad so start with a med review, the most
Diagnosis and Workup ... Secondary causes ... the most common cause ... the US inpatient setting ... #algorithm
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
Hematuria Workup ... and Diagnosis Algorithm ... mimics, repeat testing ... Nephrology if cause ... #Workup #urology
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
Differential Diagnosis Algorithm ... present on repeat testing ... including overnight testing ... albuminuria) - Active ... #Causes
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Differential Diagnosis Algorithm ... Must exclude false ... Hematuria with active ... Hematuria with active ... #Causes
Intraoperative Massive Blood Loss - Guidelines for Crises in Anaesthesia
Expected or unexpected major haemorrhage

❶ Call for
with them): • Activate ... required. ❻ Begin active ... point of care testing ... • Use lab testing ... Diagnosis #Management #Workup
Peri-operative Hyperthermia - Guidelines for Crises in Anaesthesia
If prolonged or ≥ 39 C this is a
• Excessive heating ... production • Actively ... maintained fever CAUSES ... #Differential #Causes ... Diagnosis #Management #Workup
Recommended initial testing for patients being evaluated for glomerular disease 

24-hour urine collection - Quantify proteinuria.
Recommended initial testing ... disorders that activate ... infections are common causes ... #glomerular #testing ... #workup #diagnosis