HEMATOLOGY

ANALYTE

AGE RANGE

CRITICAL VALUE

UNITS

Absolute Neutrophil Count

Any age

≤0.5 (Outpatient only)

K/µL

Cell Count, Any body fluid

Any age

Intracellular organisms. (Non CSF- Blasts and Tumor cells to be called as soon as a provider is available, which for inpatients is immediate, for others called next business day.)

Cell Count, CSF only

Any age

WBC Count >30
(excluding peripheral blood contamination)

/µL

Cell Count, CSF only

Any age

Blasts or Tumor Cells

Gram Stain

Any age

Positive

N/A

Hematocrit (PCV)

Any age

≤21.0
≥65.0

%

Hemoglobin

Any age

≤7.0

g/dL

Malaria Screening

Any age

Positive

N/A

Platelet Count

Any age

≤10,000
≤50,000 (L&D, OB outpatient clinics, and Perinatal Diagnostic Center only)
≤100,000 with 2+microangiopathic changes

/µL

Slide Review/Diff

Any age

Presence of intracellular organisms.
Blasts on peripheral smear (1st time or relapse only).

Stool

Male/Female <18 Years

Sperm

N/A

Urinalysis

Female <18 Years

Male <18 Years 

Sperm or Trichomonas


Trichomonas 

N/A

WBC

Any age

≤0.5 (Outpatient only)
≥50

K/µL