36 results
Causes of False Elevation and Reduction in HbA1c

== False Elevation ==
Decreased RBC turnover 
• Iron, B-12,
Causes of False ... Reduction == Increase ... blood loss • Hemolytic ... HgbA1c #Laboratory #Increase ... #Decrease #Diagnosis
Blood Product Transfusions One Pager Summary
Type and screen - determines blood type and detects in recipient
Transfusion Thresholds ... Hemolysis on labs ... Causes purpura & ... TRALI): Leading cause ... more likely to cause
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
Causes of Anemia ... Diagnosis Algorithm Decreased ... WBCs - Decreased ... Infiltration - Increased ... Bleed • Hemolysis
Causes of HyperKalemia - Differential Diagnosis
Increased extracellular K+:
 • Tissue injury
 • Hemolysis
 • Rhabdomyolysis
 •
Causes of HyperKalemia ... Differential Diagnosis Increased ... Tissue injury • Hemolysis ... intake • Blood transfusion ... of injection Decreased
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
venipuncture • Hemolysis ... - Transfusion ... hypoperfusion Increased ... Blood transfusion ... differential #diagnosis #causes
Hyperphosphatemia - Differential Diagnosis Algorithm
Transcellular Shift:
 • Rhabdomyolysis
 • Tumor Lysis
 • Metabolic or Respiratory Acidosis
Insulin Deficiency Decreased ... Bisphosphonate Therapy Increased ... Hyperbilirubinemia • Hemolysis ... Diagnosis #Algorithm #endocrinology ... #causes
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
Mild-to-moderate decrease ... in most cases; ... Platelet count - Decreased ... nucleated RBCs, and decreased ... hematuria (without casts
Causes of hypophosphatemia - Differential Diagnosis
 • Increased losses: enhanced urinary phosphate excretion
 • Decreased input:
Causes of hypophosphatemia ... Diagnosis • Increased ... excretion • Decreased ... hypophosphatemia #Causes ... Differential #Diagnosis #endocrinology
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
Diagnostic algorithm Decreased ... failure • Drugs Increased ... diet • Blood transfusion ... • Tumor lysis/hemolysis
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
venipuncture • Hemolysis ... - Transfusion ... hypoperfusion Increased ... Blood transfusion ... differential #diagnosis #causes