14 results
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
result is positive (abnormal ... #Diagnosis #PhysicalExam ... #Neurology #AVS ... #HeadImpulse #Testing ... #HIT #HINTS
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Diagnosis Algorithm ... Weakness, fatigue, nausea ... , hypoglycemia Testing ... ACTH) stimulation test ... or normal baseline
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Diagnosis and Screening ... Testing Common ... #Diagnosis #Causes ... #Screening #Workup ... #table
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypomagnesemia #Differential ... #Diagnosis #Low ... #Magnesium #Table ... Classification #Causes ... #Workup #hypomg
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
in cases in which ... aldosterone - Often normal ... Evaluation #laboratory #diagnosis ... #testing #endocrinology ... #workup
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
If the value is low ... , tests to detect ... indirect antiglobulin tests ... WBC count and differential ... #Workup #Hematology
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
from other causes ... #Hypokalemia #diagnosis ... #Algorithm #differential ... #potassium #nephrology ... #low
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... remember than the normal ... #Hyponatremia #differential ... #diagnosis #table ... #sodium #nephrology
Recommended initial testing for patients being evaluated for glomerular disease 

24-hour urine collection - Quantify proteinuria.
in monitoring low-level ... C3, C4 - Test for ... infections are common causes ... #workup #diagnosis ... nephrotic #nephritic #nephrology
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
Polycythemia - Differential ... an underlying cause ... levels: realllly low ... Best to have an ... #workup #hematology