Dr. Gerald Diaz @GeraldMD
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Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief 🇵🇭 🇺🇸 - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG: https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/
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9 results
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
- Differential Diagnosis ... and Gitelman syndrome ... with secondary, hypocalcemia ... #causes #nephrology ... #magnesium #low
Hypermagnesemia - Etiologies by Mechanism
Renal Failure 
Excessive Mg Administration 
 - Massive PO intake
- Tumor lysis syndrome ... #Differential #Diagnosis ... #High #Magnesium ... #Table #Causes ... #Management
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
potassium(K) & magnesium ... wasting from other causes ... suggests extra-renal causes ... #diagnosis #Algorithm ... differential #potassium #nephrology
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypercalcemia - Hypokalemia ... #Differential #Diagnosis ... #Low #Magnesium ... #Table #Classification ... #Causes #Workup
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Guillain-Barré syndrome ... Hyperreflexia: • Hypocalcemia ... Hyperthyroidism, Serotonin syndrome ... #differential #diagnosis ... #table #neurology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... Algorithm Syndrome ... • Drugs • Pulmonary ... Malignancy True hypovolemia ... #Hyponatremia #Nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
Present (Uosm ≥100): Hypovolemia ... Cirrhosis, Nephrotic syndrome ... #differential #diagnosis ... #table #sodium ... #nephrology
Rhabdomyolysis - Differential Diagnosis Framework
Rhabdomyolysis = Destruction of skeletal muscle with leakage of contents into circulation.
- Differential Diagnosis ... Neuroleptic malignant syndrome ... Electrolytes: Hypokalemia ... #Causes #nephrology ... #table
Clarkson’s Disease - Capillary leak syndrome
Epidemiology: Roughly 150 published cases, Median age 50 years, No sex
Capillary leak syndrome ... 150 published cases ... Hypovolemia: Asthenia ... filling +++ (risk of pulmonary ... #diagnosis #management