17 results
Hyperkalemia Differential Diagnosis Algorithm
R/O Pseudo-hyperkalemia:
 • Possible Lab error! Alwavs Repeat Blood sample!
 • Leukocytosis, Thrombocytosis:
Hyperkalemia Differential ... Algorithm R/O Pseudo-hyperkalemia ... ischemia-induced RBC hemolysis ... ) • RBC Hemolysis ... Algorithm #causes #potassium
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
Hyperkalemia: Diagnostic ... Decreased renal potassium ... Drugs Increased potassium ... • Tumor lysis/hemolysis ... • Type 1 #Hyperkalemia
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
venipuncture • Hemolysis ... edema • Jaundice/Hemolytic ... • Recent IV potassium ... cell lysis: - Hemolysis ... diagnosis #causes #potassium
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
venipuncture • Hemolysis ... edema • Jaundice/Hemolytic ... • Recent IV potassium ... cell lysis: - Hemolysis ... diagnosis #causes #potassium
Causes of Hyperkalemia
Pseudohyperkalemia
 - Tourniquet use
 - Hemolysis (in vitro)
 - Leukocytosis
 - Thrombocytosis
Intra- to extracellular
Causes of Hyperkalemia ... Tourniquet use - Hemolysis ... intoxication - Hyperkalemic ... aged blood - Hemolysis ... acidosis) #Hyperkalemia
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
= (Retic %) x (Hct ... Retroperitoneal, Uterine • Hemolysis ... Microangiopathic hemolytic ... sickle cell anemia, G6PD
Drug-induced Hemolysis in G6PD Deficiency
Medicines and other substances likely to be UNSAFE in moderate to severe
Drug-induced Hemolysis ... in G6PD Deficiency ... moderate to severe G6PD ... #DrugInduced #Hemolysis ... #Pharmacology #
Nitrofurantoin Toxicology
Serious Adverse Effects:
Hemolysis in patients with G6PD-deficiency
Peripheral neuropathy
Hepatitis
Pulmonary toxicity
Nephritis

By Dr. Kathryn Watson @Kat_Watson

#Nitrofurantoin #Macrobid #Toxicity
Adverse Effects: Hemolysis ... patients with G6PD-deficiency ... Toxicity #Toxicology #Pharmacology
Causes of Hyperkalemia - Differential Diagnosis Framework
 • Cellular Shift:
   - Exercise
Causes of Hyperkalemia ... tacrolimus - Hyperkalemic ... Crush injury, Hemolysis ... • Pseudo hyperkalemia ... Diagnosis #Causes #potassium
Blood Transfusion Reactions

Immune Mediated:
 • Febrile Non-Hemolytic Transfusion Reaction (FNHTR): Most common immune reaction to transfusion.
antibodies leading to hemolysis ... Hemolysis on labs ... , fever, minor hemolysis ... Hypocalcemia, Hyperkalemia ... products contain potassium