CRITICAL VALUES

Effective Date: 
Sun, 04/01/2012
Reviewed: 
Tue, 01/10/2017
Policy: 

Critical and alert values may either be life threatening, require immediate medical attention, or a change in current treatment may be necessary. These values must be forwarded to the attending physician or nurse in an expedient manner for immediate attention.

Procedure: 
  1. Rerun critical value prior to reporting. If there is any reason to suspect instrumentation malfunction, rerun controls as well.
  2. Give Critical Value Results to the ordering physician or the attending nurse as warranted. Use two forms if identification when identifying patient and have the recipient readback the result.
  3. Document this notification in the Orchard Harvest LIS using the format "called to and readback by:", commenting if the critical value was repeated, and who was notified with the results.
  4. Critical Value Results obtained by testing at our reference laboratory will be called  by them to the laboratory (work hours), or the Medical Director (after hours).

THE FOLLOWING RESULTS ARE CONSIDERED TO BE CRITICAL VALUES:

CHEMISTRY

Sodium:               < 120 or >160 mmol/L

Potassium:          < 3.0 or >6.0 mmol/ L

Glucose:              < 50 or >200 mg/dL

BUN:                     > 100 mg/ dL

Creatinine:          > 8.0 mg/ dL

CK (< 18 Y):         > 1000 U/L

CK (> 18 Y):         > 4000 U/L

HEMATOLOGY

WBC                     < 3,000 OR >15,000

Hemoglobin           < 8.0 OR >20.0 gm/dl

Hematocrit             < 25 OR >60 %

Platelet                  <100,000 OR >500,000

URINALYSIS

Glucose                   Positive

WHOLE BLOOD GLUCOSE

Glucose                   < 50 OR >200 mg/dl