Dr. Gerald Diaz @GeraldMD
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Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief πŸ‡΅πŸ‡­ πŸ‡ΊπŸ‡Έ - 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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Hypokalemia Differential Diagnosis Algorithm

Low intake 
β€’ poor oral intake 

Renal loss 
β€’ Medication 
β€’ Hypomagnesemia 
β€’
Diagnosis Algorithm ... oral intake Renal ... Medication β€’ Hypomagnesemia ... #Differential #Diagnosis ... #Algorithm #Causes
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Differential Diagnosis ... Renal Causes of ... with secondary, hypocalcemia ... #differential #diagnosis ... #causes #nephrology
Hypomagnesemia (Serum level < 1.7 mg/dL)
Neuromuscular manifestations 
 β€’ Tremor, tetany, seizures 
 β€’ Weakness
Hypomagnesemia ( ... dysrhythmias Hypokalemia ... β€’ Renal potassium ... metabolism β€’ Hypocalcemia ... Signs #Symptoms #Diagnosis
Hyponatremia Diagnosis Algorithm
UOsm β‰₯ POsm - Vasopressin-Dependent
 β€’ UNa < 20 mEq/L - Appropriate (↓ EABV)
Hyponatremia Diagnosis ... Algorithm UOsm ... EABV) - Consider: Hypovolemia ... solute intake, Renal ... #nephrology
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
- Differential Diagnosis ... Algorithm Defining ... K loss β€’ Hypomagnesemia-induced ... #algorithm #causes ... #nephrology #potassium
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... Pain/Post-op β€’ Neurologic ... Malignancy True hypovolemia ... GI losses β€’ Renal ... #Diagnosis #Algorithm
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
associated with hypokalemia ... and hypomagnesemia ... Hypokalemia ... #differential #diagnosis ... #nephrology #Causes
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... Diagnosis Poor ... Mineralocorticoid excess - Renal ... - Polyuria - Hypomagnesemia ... #Differential #Diagnosis
Causes of Seizures - Differential Diagnosis Algorithm
Unprovoked - Epilepsy:
 β€’ Focal: Simple, Complex
 β€’ Generalized: Absence,
Algorithm Unprovoked ... Hyperglycemia, Hyponatremia ... , Hypomagnesemia ... , Hypocalcemia, ... #neurology
Cancer agents and Electrolyte Disorders
 β€’ Hypocalcemia: Cisplatin from Low Mg, Cetuximab- due to low Mg
Axitinib,
Disorders β€’ Hypocalcemia ... Regorafenib β€’ Hypomaqnesemia ... Trastuzumab β€’ Hyponatremia ... Trastuzumab β€’ Hypokalemia ... #chemotherapy #diagnosis