19 results
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
the basis of the potassium-to-creatinine ... Urine K+ <13 mEq ... EABV, Low Plasma ... #potassium #differential ... algorithm #diagnosis #nephrology
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
A urine K/Cr ratio ... • Diarrhea A urine ... diagnosis #Algorithm #differential ... #potassium #nephrology ... #low
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Causes of Hypokalemia ... - Differential ... loss • Hypomagnesemia-induced ... #hypokalemia #differential ... #nephrology #potassium
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
of magnesium = (urine ... #algorithm #differential ... #diagnosis #causes ... #nephrology #magnesium ... #low
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
- Polyuria - Hypomagnesemia ... #Diagnosis #Low ... #Potassium #Table ... #Classification ... #Causes
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... • Trauma/Crush injury ... #diagnosis #causes ... #potassium #high ... #nephrology
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
Causes of Hypomagnesemia ... osmotic diuresis, Potassium ... #Causes #differential ... #diagnosis #nephrology ... #magnesium #low
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... • Trauma/Crush injury ... #diagnosis #causes ... #potassium #high ... #nephrology
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... - Differential ... • Central Dl (Low ... diseases, Hypoxic injury ... #nephrology
Guide to Acute Kidney Injury (AKI)

What to ask/look for: 
 - HPI, PMH, full ROS
to Acute Kidney Injury ... UOP/weights - Urine ... Na/K/Cl/urea/protein ... AcuteKidneyInjury #AKI #Nephrology ... #Differential