171 results
Causes of Hyperkalemia
Pseudohyperkalemia
 - Tourniquet use
 - Hemolysis (in vitro)
 - Leukocytosis
 - Thrombocytosis
Intra- to extracellular
(in vitro) - Leukocytosis ... extracellular potassium ... load - Potassium ... foods - IV potassium ... - Potassium-containing
Hyperkalemia Differential Diagnosis Algorithm
R/O Pseudo-hyperkalemia:
 • Possible Lab error! Alwavs Repeat Blood sample!
 • Leukocytosis, Thrombocytosis:
Leukocytosis, ... Algorithm #causes #potassium
Pseudohyperkalemia vs Reverse Hyperkalemia

Pseudohyperkalemia and reverse pseudohyperkalemia are both conditions where potassium levels appear falsely elevated.

Pseudohyperkalemia:
This
conditions where potassium ... Mechanism: • Potassium ... • Leukocytosis ... • Plasma potassium ... • Serum potassium
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
thrombocytosis, leukocytosis ... • Recent IV potassium ... diagnosis #causes #potassium
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
thrombocytosis, leukocytosis ... • Recent IV potassium ... diagnosis #causes #potassium
Hyperkalemia Management
Pseudohyperkalemia: 1. Hemolyzed sample 2. Blood drawn from a site/line where potassium or TPN is
site/line where potassium ... thrombocytosis or leukocytosis ... Management #treatment #potassium
Causes of Hyperkalemia - Differential Diagnosis Framework
 • Cellular Shift:
   - Exercise
Thrombocytosis, Leukocytosis ... Diagnosis #Causes #potassium
Evaluation of Leukocytosis:
The term 'leukocyte' applies to any cells within the myeloblast, monoblast, & lymphoid lineages.
Include
Evaluation of Leukocytosis ... In adults, leukocytosis ... LEUCOCYTOSIS WBC ... #LEUCOCYTOSIS #LEUKEMOIDREACTION
Approach to Leukocytosis - Differential Diagnosis Algorithm

Features of hematologic malignancy:
 • Symptoms: B-symptoms, bruising/bleeding, fatigue/weakness, immunosuppression
Approach to Leukocytosis ... MatthewHoMD #Leukocytosis
Checklist Approach to Hypokalemia

Consider risk factors for arrhythmia:
 - EKG changes (especially QT prolongation)
 - Digoxin
safely, whereas potassium ... Consider target potassium ... Enteral potassium ... function & estimated potassiurn ... Intravenous potassium