26 results
Purple Urine Bag Syndrome
Chronic, indwelling catheter + bacteriuria (Providencia, Klebsiella, E.coli*) + alkaline urine
Tryptophan → Indoxyl
Syndrome Chronic ... #pathophysiology ... #clinical #photo ... #differential # ... diagnosis
Mydriasis and Miosis - Differential Diagnosis Framework

Causes of Mydriasis:
Dilated pupils (mydriasis) more than 7mm
 • Unilateral
Mydriasis and Miosis - Differential ... Diagnosis Framework ... response, Serotonin syndrome ... Miosis: Horner's syndrome ... Robertson pupils), DM, SAH
Serotonin Syndrome Drug Precipitants and Pharmacology
↑ Serotonin Formation: Tryptophan, Oxitriptan
↑ Serotonin Release: Amphetamines, Cocaine, Mirtazapine
↑ Serotonin
Serotonin Syndrome ... #Pharmacology # ... medications #causes ... #differential # ... diagnosis #drug
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Renal Loses - Medications ... Hypomagnesemia #Differential ... #Diagnosis #Low ... #Magnesium #Table ... Classification #Causes
Common Medications Known to Prolong QTc
Antiarrhythmics - Amiodarone, sotalol, flecainide, quinidine, dronedarone, dofetilide
Vasopressors/inotropes - Epinephrine, norepinephrine,
Common Medications ... #Prolongation #Medications ... #Causes #differential ... #diagnosis #pharmacology ... #table
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Syncope - Differential ... Diagnosis Algorithm ... • Anemia • Medications ... (SA Node) ... #causes
Hyperglycemia - Differential Diagnosis Algorithm
Diabetes Mellitus:
 • Impaired Glucose Tolerance
 • Type I Diabetes
 • Type
Hyperglycemia - Differential ... Diagnosis Algorithm ... • Cushing's Syndrome ... • Acromegaly Medications ... endocrinology #causes
Causes of Hypomagnesemia
Redistribution:
 - IV glucose
 - Correction of diabetic ketoacidosis
 - IV hyperalimentation
 - Refeeding
Causes of Hypomagnesemia ... Hypomagnesemia #Causes ... #diagnosis #differential ... #medications #drugs ... #pharmacology #
Portal Hypertension - Differential Diagnosis
Portal Pressure = the pressure difference between the pressure in the portal
Hypertension - Differential ... Diagnosis Portal ... >10 mmHg - clinically ... HTN: ascites (SAAG ... #Diagnosis #causes
Schematic representation of the major sources of ammonia production and its excretory pathway (GI = gastrointestinal,
ileal conduit - Medications ... rare): - Reye syndrome ... deficiency #Ammonia #Pathophysiology ... Hyperammonemia #Differential ... #Diagnosis