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
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
• Additional laboratory ... tests may be needed ... Test for celiac ... Non-invasive testing ... change medical management
Antenatal Visits - Testing and Schedule
At Every Visit:	
 • Gestational Age	
 • BP
 • Maternal Weight
Antenatal Visits - Testing ... Maternal Weight • Urine ... Stillbirth GDM Management ... Glucose Challenge Test ... Glucose Tolerance Test
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
Diagnosis and Management ... Laboratory Diagnosis ... the preferred test ... testing of skin ... the workup • Test
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
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