Critical Values in Clinical Chemistry

Critical Values in Clinical Chemistry

*NOTE: PLEASE REFER TO THE PATHOLOGIST WHEN THE FOLLOWING RESULTS ARE OBTAINED. ANALYTES AMYLASE BILIRUBIN, TOTAL (NEWBORN) CALCIUM CHLORIDE CK

LOW S.I UNIT CONV. UNIT NONE NONE NONE NONE 0.442 mmol/L >24.75 mmol/L >16.5 mmol/L >2.35 mmol/L >6.2 mmol/L >8 mmol/L >160 mmol/L >28.56 mmol/L >7.74 mmol/L >90 grams/L

CONV. UNIT NONE 15 meq/L 13.0 meq/L 115 meq/L

>5 mg/dL 450 mg/dL 300 mg/dL 4.7 mg/dL 6.2 meq/L 8 meq/L 160 meq/L 80 mg/dL >300 mg/dL 90 mg/dL

Critical Values in Hematology *NOTE: PLEASE REFER TO THE PATHOLOGIST WHEN THE FOLLOWING RESULTS ARE OBTAINED.

Hematology

Low

High

1. Hematocrit 120 sec* 10. Peripheral blood smears with atypical lymphocytes and/or plasma cells.

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Critical Values in Clinical Microscopy

*NOTE: PLEASE REFER TO THE PATHOLOGIST WHEN THE FOLLOWING RESULTS ARE OBTAINED.

Urinalysis 1. Strongly positive test for ketone 2. Presence of reducing sugars in infants 3. Presence of pathological crystals (cysteine, leucine, tyrosine)

CSF 1. 2. 3. 4. 5.

Low

High

Glucose < 80% of blood level -Protein, total None >45 mg/dL Positive GS or AFB stain, culture or India ink preparation\ WBC in CSF None >10/ cu mm Presence of malignant cells or blasts in any other body fluid.