Critical Values
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Critical Values For Chemistry Units
ANALYTE CRITICAL VALUES Bilirubin, newborn >15 mg/dL Blood Gases, Adult
pH
pCO2
pO2<7.20 or >7.6 <20 or >70 mmHg
<40 >90mmHg
pO2(Now born) <35 or >90 mmHg Calcium, ionized <3.0 or>6.4mg/dL Calcium, total <6.0 or >13.0 mg/dL Chloride <80 or >120 mmol/L Glucose, adult <40 or >500 mg/dL Glucose, newborn <30 or >325 mg/dL Magnesium <1.0 or >4.7 mg/dL Osmolality <250 or >325 mOsm/Kg Phosphorus <1.0 >9 mg/dL Potassium <2.8 or>6.2mmol/L Sodium <120 or >160mmol/L -
Critical Values For Hematology Unit
ANALYTE CRITICAL VALUES Absolute Neutrophil (non‐oncology) <0.5 x 10³/uL Hematocrit <20% > 65% Hemoglobin < 7.0 g/dL Partial thromboplastin time > 100 sec Prothrombin Time INR >5 Platelet count Infants(NICU only )
Non-oncology
<60 x 103/uL<20 x 103/uL> 1000 x 10³ /uL -
Critical Values For Immunology Unit
ANALYTE CRITICAL VALUES Carbamazepine >14.0 ug/mL Cyclosporine by immunoassay >700 ng/mL Digoxin >3.0 ng/ml Phenytoin (Dilantin) >30.0 ug/mL Theophylline >25.0 ug/mL Valproic Acid (VPA) >150 ug/mL -
Critical Values For Hormone Unit
ANALYTE CRITICAL VALUES troponin I >3 ng/dL T4, adult >18.0 ug/dL T4, newborns <3.5 or >18.0 ug/dL -
Critical Values For Microbiology Unit
- Positive blood culture.
- Positive direct exam or culture on spinal fluid (CSF).
- Positive Cryptococcal antigen (Serum or CSF).
- Positive direct exam on any specimen from the Operating Room.
- Positive AFB stain or culture from any specimen.
- Positive Herpes simplex virus PCR on cerebral spinal fluid (CSF).