13 results
Causes of HyperKalemia - Differential Diagnosis
Increased extracellular K+:
 • Tissue injury
 • Hemolysis
 • Rhabdomyolysis
 •
Causes of HyperKalemia ... - Differential ... lysis syndrome • Metabolic ... acidosis • Succinylcholine ... glycosides • High
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
treated with IV potassium ... urinary losses: • High ... acidosis: Proximal ... diagnosis #Algorithm #differential ... #potassium #nephrology
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Syndrome • HTN, High ... Diagnosis #Algorithm #causes ... #potassium #low ... #nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
transfusion • HTN and edema ... infusions) - Metabolic ... acidosis - Hyperkalemia ... #diagnosis #causes ... #potassium #high
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Differentials? ... AG metabolic acidosis ... Metabolic acidosis ... failure (uremia) K ... Diagnosis #Summary #Nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
transfusion • HTN and edema ... infusions) - Metabolic ... acidosis - Hyperkalemia ... #diagnosis #causes ... #potassium #high
Salicylate Toxicity - Diagnosis and Management

Consider if:
1) Patient is hot and altered
2) You see tachypnea with
no respiratory cause ... Diaphoresis, Pulmonary edema ... Alkalosis, High ... Lactate, Low Potassium ... 4.5 mmol/L 4) K
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
the indicated causes ... acidosis, a high ... of sodium and potassium ... urine #Algorithm #nephrology ... #differential #
Causes of High-anion Gap and Non-anion Gap Metabolic Acidosis
Causes of High-anion Gap Acidosis:
 • Lactic acidosis
Causes of High-anion ... Acidosis Causes ... Potassium-sparing ... #Acidosis #differential ... #nephrology
Lactated Ringers (LR) vs Normal Saline (NS) - Comparison

Composition of LR:
 • Sodium 130 mEq/L
 •
130 mEq/L • Potassium ... trial • Minimal K ... development of metabolic ... densa receives high ... • Saline May Cause