203 results
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Commonly Used Diagnostic ... specificity - Falsely negative ... disease) - May be negative ... HLA-DQ8 - High negative ... #Diagnosis #Workup
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
patients with anemia, diagnose ... endoscopy only if: • Negative ... change medical management ... Gastrointestinal #Evaluation #workup ... #diagnosis #gastroenterology
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
The head impulse test ... with a peripheral cause ... of AVS and negative ... with a central cause ... #Diagnosis #PhysicalExam
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... tests are TN. ... proportion of negative ... , -1 = perfect negative ... #calculations #diagnosis
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential Diagnosis ... and Workup History ... K), H. pylori test ... thyroid function test ... #Causes #Workup
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
High T4/T3) - Diagnostic ... Check pregnancy test ... workup choices ... AND management options ... #Algorithm #Workup
Hemolysis - Diagnostic Algorithm and Causes

Increased red cell production: 
 • Increased Reticulocytosis/polychromasia 
 • Erythroid
Hemolysis - Diagnostic ... Algorithm and Causes ... #Workup #Hematology ... #Diagnosis * ... GrepMed Recommended Text
Relative Afferent Pupillary Defect

This maneuver of intermittent light stimulus is called the alternating light test or
alternating light test ... swinging-flashlight test ... very sensitive diagnostic ... regarding the cause ... Pupils #MacrusGunn #PhysicalExam
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
- Differential Diagnosis ... Renal ultrasound, Tests ... sodium loading test ... #Differential #Diagnosis ... #Workup #table
Nausea and Vomiting in Pregnancy: Hyperemesis Gravidarum vs Nausea and Vomiting of Pregnancy

Diagnosis, Workup and Treatment

#Diagnosis
Nausea and Vomiting ... Gravidarum vs Nausea ... of Pregnancy Diagnosis ... , Workup and Treatment ... #Diagnosis #Management