13 results
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
• Additional laboratory ... Test for celiac ... disease with serology ... Non-invasive testing ... Gastrointestinal #Evaluation #workup
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
for Celiac Disease ... patients with celiac disease ... value for celiac disease ... #Testing #Laboratory ... #Workup #Table
Helicobacter Pylori Testing  Methods - Sensitivity and Specificity

Serology - 85% - 79% - Does not
Helicobacter Pylori Testing ... Urea breath test ... first line test ... #Laboratory #Diagnosis ... #Accuracy
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... Studies in Rheumatic Diseases ... more time for the laboratory ... Rheumatoid #Arthritis #laboratory ... #workup #diagnosis
Chronic Diarrhea - Workup
Osmotic:
 • Consider food diary and trial avoiding certain foods or meds, Consider
Chronic Diarrhea - Workup ... hydrogen breath test ... for celiac disease ... Chronic #Diarrhea #Workup ... #diagnosis #differential
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Tuberculosis Testing ... intermediate risk of disease ... Tuberculin skin testing ... Improves diagnostic accuracy ... #Diagnosis #Workup
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... Diagnosis and Workup ... smear, HIV/HCV testing ... K), H. pylori test ... thyroid function test
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Hypertension - Differential ... and Screening Testing ... cause of renal disease ... #Hypertension #Differential ... Causes #Screening #Workup
Causes of Tremors - Movement Disorders - Differential Diagnosis Algorithm
Action Tremor - Occurs During Voluntary Muscle
Movement Disorders - Differential ... multiple sclerosis) Resting ... Tremor - Occurs at Rest ... MovementDisorders #Neurology ... #Differential #
Causes of Inaccurate Fecal Occult Blood Test Results 

False Positive gFOBT:
Ingestion of nonhuman heme (eg, meat
Fecal Occult Blood Test ... #OccultBlood #Testing ... #Laboratory #FalsePositive ... FalseNegative #Diagnosis #Differential ... #Accuracy #Inaccurate