8 results
Causes of False Elevation and Reduction in HbA1c

== False Elevation ==
Decreased RBC turnover 
• Iron, B-12,
Causes of False ... Hypertriglyceridemia • Uremia High ... Content • RBC Transfusions ... blood loss • Hemolytic ... #Decrease #Diagnosis
Blood Product Transfusions One Pager Summary
Type and screen - determines blood type and detects in recipient
Transfusion Thresholds ... Causes purpura & ... TRALI): Leading cause ... High mortality. ... more likely to cause
Causes of HyperKalemia - Differential Diagnosis
Increased extracellular K+:
 • Tissue injury
 • Hemolysis
 • Rhabdomyolysis
 •
Tissue injury • Hemolysis ... glycosides • High ... intake • Blood transfusion ... of injection Decreased ... blockers - MCW Nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
phlebotomy High ... - Transfusion ... differential #diagnosis #causes ... #potassium #high ... #nephrology
Several artifacts can cause significant and potentially misleading alterations to measured RBC parameters: 
1. Old samples
falsely high Hgb ... Hemolysis causes ... PCV to decrease ... PCV and MCV to decrease ... #Echinocytes #BurrCells
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
Diagnostic algorithm Decreased ... diet • Blood transfusion ... • Tumor lysis/hemolysis ... Normal, Renin High ... Diagnosis #algorithm #nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
phlebotomy High ... - Transfusion ... differential #diagnosis #causes ... #potassium #high ... #nephrology
Intracranial Hemorrhage (ICH) and Increased Intracranial Pressure (ICP) - Pathophysiology
ICH Management:
1. Manage Blood Pressure
  •
consider platelet transfusion ... reduces CPP) • High ... = dilated BV = raises ... High ICP: 20. ... Pathophysiology #neurology