37 results
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 tests ... DrugScreens #UDS #Laboratory ... FalsePositive #Testing
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Used Diagnostic Tests ... reliable noninvasive test ... Reflects response to treatment ... Celiac #Disease #Testing ... #Laboratory #Tests
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
and Screening Testing ... Renal ultrasound, Tests ... sodium loading test ... (with 24-h urine ... saline infusion test
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
- CCP antibody testing ... more time for the laboratory ... and C serology testing ... • Serum and urine ... Rheumatoid #Arthritis #laboratory
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
Urinis", determined heating ... Clarity Dipstick test ... specific gravity test ... • Urinary casts ... #UNa #casts #glucosuria
Acute Mesenteric Ischemia - Performance of 
Laboratory Tests (Sensitivity, Specificity) 
- WBC, Lactate, D-dimer, Urine I-FABP

#Mesenteric
Performance of Laboratory ... Tests (Sensitivity ... Lactate, D-dimer, Urine ... Ischemia #AMI #Testing ... #Diagnosis #Laboratory
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic inflammation causes ... Most Common Causes ... Bronchoscopy Laboratory ... Sweat chloride test ... mycobacteria Treatment
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
False Positives on Urine ... naproxen and modern tests ... FalsePositives #Urine ... DrugScreening #UDS #Testing ... #Laboratory #diagnosis
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
ACTH stimulation test ... aldosterone - Low in cases ... - Serum tests that ... Insufficiency #Evaluation #laboratory ... #diagnosis #testing
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
Hyponatremia is usually caused ... Measure urine osmolality ... Treatment: Treatment ... the underlying cause ... up to 3x in the setting