Critical Value Chart

CHEMISTRY-ADULT*

 

TEST

CRITICAL VALUE

 
Acetaminophen >30 mcg/mL  
Ammonia >30 mcg/mL  
Arterial pCO2 <20 and >70 mmHg  
Arterial pH <7.20 and >7.60  
Arterial pO2 <40 mmHg  
BUN >75 mg/dL (if not consistent with patient history)
Calcium <6.0 and >13.0 mg/dL  
Capillary pO2 <35 mmHg  
Carbamazepine >12 mcg/mL  
CK >6000 U/L  
CO2 <10 and >40 mmol/L (>40 if not consistent with patient history)
Cord Blood pH < 7.00  
Creatinine >5.0 mg/dL (if not consistent with patient history)
Digoxin >2.0 ng/mL  
Ethanol >300 mg/dL  
Gentamicin, Peak >10.0 mcg/mL  
Gentamicin, Trough >2.0 mcg/mL  
Glucose, Serum or Plasma <50 and >400 mg/dL  
Hepatitis A Antibody (IgM) Positive (for public health reporting)
HsCTNI >500 ng/L  
Ionized Calcium <3.5 and >6.0 mg/dL  
Lactic Acid >3.9 mmol/L  
Lead >44.9 mcg/mL  
Lithium >1.5 mmol/L  
Magnesium <1.0 and >4.0 mg/dL  
Osmolality, Serum or Plasma <265 and >320 mOsm/Kg  
Phenobarbital >40.0 mcg/mL  
Phenytoin >20.0 mcg/mL  
Phosphorus <1.0 mg/dL  
Potassium <2.8 and >6.0 mmol/L  
Salicylate >30.0 mg/dL  
Sodium <120 and >160 mmol/L  
Tobramycin, Peak >10.0 mcg/mL  
Tobramycin, Trough >2.0 mcg/mL  
Urine Protein (OB/Gyn) >500 mg/24hr  
Valproic Acid >500 mg/24hr  
Vancomycin, Peak >60.0 mcg/mL  
Vancomycin, Trough >23.0 mcg/mL  
     
 Rev. 1/25    
 

CHEMISTRY-PEDIATRIC*

TEST

CRITICAL VALUES

 

  0-28 days 29 days – 18 years
Bilirubin, Neonatal >15.0 mg/dL If >29 days, not neonatal
Calcium <6.5 and >11.0 mg/dL <6.0 and >13.0 mg/dL
Chloride <85 and >115 mmol/L Not established
CK >1000 U/L >1000 U/L
CO2 <15 and >35 mmol/L <10 and >40 mmol/L
Creatinine >2.0 mg/dL >2.5 mg/dL
Glucose <30 and >250 mg/dL <50 and >400 mg/dL
Magnesium <1.0 and >3.0 mg/dL <1.0 and >4.0 mg/dL
Phosphorus <3.5 and > 10.0 mg/dL <2.5 mg/dL
Potassium <3.0 and >7.0 mmol/L <3.0 and >6.0 mmol/L
Sodium <125 and >155 mmol/L <120 and >160 mmol/L
     

HEMATOLOGY

 

TEST

CRITICAL VALUE

 
WBC <2.0 K/mcL  
WBC (Outpatient) >30.0 K/mcL  
Hemoglobin <7.0 g/dL  
Hematocrit <20.0 %  
Platelet <20.0 or >1,000 K/mcL  
INR ≥5.0  
APTT >90 sec  
     

MICROBIOLOGY

 

TEST

CRITICAL VALUE

 
Gram Stain Positive on Blood or CSF  
Blood Culture Positive  
CSF Culture Positive  
     
     
     
> = Greater than    
< = Less than    
     
     
*These critical value test results may imply a life-threatening situation for the patient and will be brought to the immediate attention of the physician or a responsible person.
All critical value results given verbally, including over the telephone, will be asked to be “read-back” by the person receiving the test result(s). 
No Appointment Necessary
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12 Patient Service Centers in Central New York.

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