10 results
Syncope Diagnostic Testing and Evaluation: Cost Effectiveness
Frequency obtained - Abnormal findings - Helped determine etiology of
Syncope Diagnostic Testing ... Syncope #diagnosis #workup ... #testing #Cost ... #Effectiveness # ... table #comparison
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
False-Negative Contingency Table ... #Specificity #FalsePositive ... #FalseNegative ... #Contingency #Table
What is Fecal Occult Blood Testing (FOBT)
 • Screening for colorectal cancer in average risk population
Fecal Occult Blood Testing ... to unnecessary testing ... #OccultBlood #Testing ... #FOBT #Guaiac #FalsePositives ... #FalseNegatives
Causes of Inaccurate Fecal Occult Blood Test Results 

False Positive gFOBT:
Ingestion of nonhuman heme (eg, meat
#OccultBlood #Testing ... #Laboratory #FalsePositive ... #FalseNegative
Syncope Cost-Effectiveness Workup
Cost-effective tests for most patients: 
 • Orthostatic BP
 • ECG
 • Telemetry (if
Syncope Cost-Effectiveness ... Workup Cost-effective ... Cardiac stress testing ... #testing #Cost ... #Effectiveness
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Familial renal Mg wasting ... Low #Magnesium #Table ... Classification #Causes #Workup
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Celiac #Disease #Testing ... Tests #Diagnosis #Workup ... #Table
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
and Screening Testing ... Causes #Screening #Workup ... #table
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
reabsorption) Workup ... Elimination (see Table ... limited evidence for effectiveness
Rybelsus (oral semaglutide) - First Oral GLP-1 Agonist
Dosing:
3 mg daily x 30 days, then 7 mg
Otherwise, it works ... starting dose before getting ... drug to remain stable