21 results
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
consciousness Differential ... ) → Arousal How ... movements; also normal ... caseyalbin #PhysicalExam ... #neurology #comatose
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
Diagnosis Algorithm ... High or Normal ... Hypercalcemia Low ... PTHrP: - Low ... #Workup #nephrology
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Diagnosis Algorithm ... Extra-renal Losses: • Normal ... #Diagnosis #Algorithm ... #nephrology
Hoffman's sign. Even in this specific case, accompanied by a clonus outline (rhythmic contractions). The median
the hand. 3) Now ... Hoffmanns #Sign #Reflex ... #Positive #Abnormal ... clinical #video #neurology ... #PhysicalExam
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Hypokalemia Differential Diagnosis Algorithm
Hypertensive:
 • High Al, Low R - Primary aldosteronism
 • High Al, High
Hypokalemia Differential ... Diagnosis Algorithm ... Hyperplasia • Normal ... Al, Normal R - ... #nephrology #causes
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
unilateral; • Slow ... reexposed to light; • Normal ... Young females Differential ... #Adies #Pupil #PhysicalExam ... #neurology #ophthalmology
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
Algorithm for patients ... Liddle syndrome Low-normal ... • Distal RTA Low-normal ... urine #potassium #differential ... #nephrology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
symptoms: • Severe low ... constipation Differential ... Imaging studies: • MRI ... Equina #syndrome #differential ... diagnosis #causes #neurology
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
renal function is normal ... Hypomagnesemia #algorithm ... #differential # ... diagnosis #causes #nephrology ... #magnesium #low
Hypochloremia - Differential Diagnosis Algorithm

Cause - Decreased Intake:
 • Low salt in diet
 • Exclusive D5W
Hypochloremia - Differential ... Diagnosis Algorithm ... Decreased Intake: • Low ... Cl⁻ with other components ... #Diagnosis #Algorithm