228 results
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
- Differential Diagnosis ... Respiratory Acidosis (pCO2 ... Respiratory Alkalosis (pCO2 ... #Differential #Diagnosis ... #Algorithm #Causes
ABG vs VBG: Arterial vs Venous Blood Gases

ABG
PROS: Tells you exactly what the arterial environment looks
vs Venous Blood Gases ... looks like (pH, PaCO2 ... Comparison #pH #pCO2 ... #Diagnosis #Differences
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
type of hypoxia) PIO2 ... O2 is inspired) PAO2 ... Low SvO2 → Low PaO2 ... #differential #diagnosis ... #causes #pathophysiology
Myasthenia Gravis
Signs, Symptoms and Testing - Likelihood Ratios
Does this patient have myasthenia gravis?
JAMA. 2005 Apr 20;293(15):1906-14.
- Ice Test - ... Rest Test - Anticholinesterase ... Test - Quiver ... eye movements #Diagnosis ... LikelihoodRatios #PhysicalExam
Knee Examination
Right Knee - Examination maneuvers include the Lachman (ACL), anterior drawer (ACL), Lateral pivot shift,
meniscal integrity) tests ... #Diagnosis #Sports ... #Knee #PhysicalExam ... McMurray #Drawer #Test
Algorithm for the diagnosis of chronic diarrhea.
It is usually impractical to test and treat the many
Algorithm for the diagnosis ... impractical to test ... many possible causes ... In most cases, it ... pick specific tests
Causes of Secondary Amenorrhea - Differential Diagnosis
 • Pregnancy
 • Endocrinopathies: PCOS, Hypothyroidism
 • HPA Dysfunction:
Causes of Secondary ... - Differential Diagnosis ... Endocrinopathies: PCOS ... #Differential #Diagnosis ... #Causes #endocrinology
HINTS Exam - Abnormal Head Impulse Test = Peripheral Cause

This video demonstrates:
1) Normal Head Impulse Test
Abnormal Head Impulse Test ... = Peripheral Cause ... Normal Head Impulse Test ... for a PERIPHERAL cause ... #HINTS #PhysicalExam
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
The head impulse test ... with a peripheral cause ... with a central cause ... a stand-alone test ... #Diagnosis #PhysicalExam
Shoulder Exam - Provocative Testing

Supraspinatus muscle injury:
 - Jobe’s Test
 - Hawkin’s Test
 - Drop Arm
injury: - Jobe’s Test ... - Hawkin’s Test ... - Drop Arm Test ... - O’Brien Test ... #Diagnosis #PhysicalExam