101 results
Rhabdomyolysis - Differential Diagnosis Framework and Management Summary

Causes of Rhabdomyolysis:
 • Trauma:
	- Immobilization
	- Crush injury
	- Compartment
Weakness - Dark urine ... • LDH ↑ • Hyperkalemia ... Shift of extracellular ... hour with goal urine ... causes #treatment #nephrology
Causes of Hypokalemia - Differential Diagnosis Algorithm
Decreased intake (rare cause in isolation)
GI loss - Urine loss
Causes of Hypokalemia ... isolation) GI loss - Urine ... Transcellular shift ... aldosterone • Renal ... #Nephrology #Differential
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Hypokalemia - Differential ... Transcellular Shift ... Medications Renal ... Losses Non-renal ... Diagnosis #Algorithm #nephrology
Causes of Hyperkalemia - Differential Diagnosis Algorithm
 • Increased Intake
 • Reduced Excretion (IV potassium with
Causes of Hyperkalemia ... Transcellular Shift ... #Hyperkalemia ... #Nephrology #Differential
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
of magnesium = (urine ... serum magnesium x urine ... intake, Gl loss, shift ... cells FEMg >4% = renal ... diagnosis #causes #nephrology
Renal Tubular Acidosis - Differential Diagnosis Algorithm
Decreased Serum K, Urine pH < 5.5 - Proximal RTA
Decreased
Renal Tubular Acidosis ... Increased Serum K = Hyperkalemic ... Renal Tubular Acidosis ... uncimchiefs #RTA #Renal ... Diagnosis #Algorithm #nephrology
Hyperkalemic Distal Renal Tubular Acidosis (RTA) Type 4 - 

Failure to acidify urine in collecting duct
Hyperkalemic Distal ... Renal Tubular Acidosis ... Failure to acidify urine ... Type4 #Distal #Hyperkalemic ... Diagnosis #Management #Nephrology
Hyperkalemia Treatment Options
Stabilize cardiac membrane:
 • IV Calcium (peaks 5-10 minutes)
Decrease potassium concentration:
 • IV Fluids
Shift
Hyperkalemia Treatment ... • IV Fluids Shift ... (if preserved renal ... LouLectures #Hyperkalemia ... management #potassium #nephrology
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Hypokalemia Differential ... Intracellular Shift ... Renal artery stenosis ... NephTwitter) #Hypokalemia ... Causes #Workup #Nephrology
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
associated with hypokalemia ... hypomagnesemia Hypokalemia ... - Shift from extracellular ... pump inhibitor - Renal ... differential #diagnosis #nephrology