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Primary and Secondary Headache Types - Differential Classification

- By Dr. Eric Strong @DrEricStrong

#Headaches #Primary #Secondary #Types
Primary and Secondary ... Headache Types ... - Differential Classification ... #Differential # ... #Table
Distal Renal Tubular Acidosis
Distal RTA is the true Nephrogenic RTA and can be truly divided into
Type A intercalated ... cells - A Low K ... Ifosfamide, topiramate, CA ... Trimethoprim • Low ... RTA #diagnosis #differential
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... Ureterosigmoidostomy Urinary ... #Diagnosis #Low ... #Potassium #Table ... #Classification
The Diagnostic Approach to Hyperkalemia
Drugs
 - Amiloride
 - Spironolactone
 - Triamterene
 - Trimethoprim
 - Pentamidine
 -
I, type II - ... High Renin - Primary ... Ketoconazole Low ... #Hyperkalemia #Algorithm ... #diagnosis #differential
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
inhibitors - Primary ... - Genetic defects ... #Diagnosis #Low ... #Magnesium #Table ... #Classification
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... channel blocking effects ... Block K+ channels (primarily ... receptors, and Ca ... #Pharmacology #Classification
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Ca++ influx to ... Vaughan Williams Classification ... channel blocking effects ... Block K+ channels (primarily ... #Pharmacology #Classification
Causes of Nephrolithiasis - Differential Diagnosis Algorithm
Radio-opaque - Calcium-containing - 90% of stones
Radiolucent - Non-calcium 10%
Nephrolithiasis - Differential ... Diagnosis Algorithm ... of stones: • Urinary ... solubility: • Low ... Hypocitraturia • RTA Type
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... can be high or low ... water intake (Primary ... #Hyponatremia #differential ... #diagnosis #table
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
Lactic Acidosis - Differential ... LV failure - Low ... B3: Hereditary Defects ... myopathies - Defects ... #typeb #classification