Critical Values at Providence Alaska Medical Center

TEST
LOW
HIGH
UNITS
WBC
1000
100,000
ug/mL
Hemoglobin
6.5
21
g/dL
Hematocrit
19
63
%
Newborn Hematocrit
--
65
%
Platelet
30
--
X10 3 /uL
Protime
--
65
seconds
INR
--
5
 
PTT
--
100
seconds
Fibrinogen
120
--
mg/dL
D-Dimer ELFA
--
1000
ng/mL
BUN
--
120
mg/dL
Calcium
6
13
mg/dL
CO2
10
40
mmol/L
Glucose
40 (1-129 yr)
600 (1-129 yr)
mg/dL
Infant Glucose
40 (0-1 yr)
200 (0 -1 yr)
mg/dL
Lactate
--
3.4
mmol/L
Magnesium
1.0
4.9
mg/dL
Phosphorous
1.2
--
mg/dL
Potassium
2.5 (1-129 yr)
6.2 (1-129 yr)
mmol/L
Infant Potassium
2.5 (0-1 yr)
7.0 (0-1 yr)
mmol/L
Sodium
120
160
mmol/L
Newborn Total Bilirubin
--
15.0 (0-1 mt)
mg/dL
Acetaminophen
--
150
ug/mL
Alcohol (Whole blood or serum)
--
350
mg/dL
Carbamazepine
--
15.1
ug/mL
Digoxin
--
2.5
ng/mL
Dilantin
--
30.0
ug/mL
Gentamicin Trough
--
2.1
ug/mL
Gentamicin Peak
--
10.1
ug/mL
Lithium
--
2.0
meq/L
NAPA & Proc. Total
--
30.0
ug/mL
Procainamide
--
10.0
ug/mL
Phenobarbital
--
60.0
ug/mL
Quinidine
--
5.0
ug/mL
Salicylate
--
30
mg/dL
Theophylline
--
21.1
ug/mL
Tobramycin trough
--
2.1
ug/mL
Tobramycin peak
--
12.1
ug/mL
Valproic Acid
--
150
ug/mL
Vancomycin peak
--
80.0
 

Effective April, 2004

 

Qualitative Critical Results
 • Positive results from Gram stain or culture from blood and cerebrospinal fluid.
 • Herpes simplex virus, group B Streptococcus, Listeria, or Neisseria gonorrhea from a neonate.
 • New findings of blasts (possible leukemia) on a peripheral blood smear.
 • Transfusion reaction workup with evidence of an acute reaction

 

 • Red blood cells that were issued on an emergency basis and later found to be incompatible.
 
Important Findings Called to the Clinician
  • Viruses isolated from any site
 • Herpes simplex virus, group B Streptococcus, Listeria, or Neisseria gonorrhea from an obstetric or postpartum patient
 • Initial positive AFB smears and cultures
 • Positive Clostridium difficile toxin assay
 • Parasites isolated from stool or other body site.
 • Enteric pathogens from stool.
 • Clostridium perfringens from any site
 • Initial positive body fluid cultures (i.e. synovial, pericardial, etc) or peritoneal dialysis cultures from outpatient.
 • Positive Cryptococcal antigen test.
 • Patient has an antibody that would delay transfusion or surgery
 • Blood order can’t be filled due to unavailability of component in question.
 • Positive direct Coombs (AKA Direct Antiglobulin Test or DAT) on cord blood.

 

NOTE: Referral laboratory test critical values are as defined by reference laboratory, unless designated differently by the PAMC medical staff.