Sign in →

Test Code Hct Spun Hematocrit Spun

Aliases

Spun Hct

Useful For

Performing a hematocrit determination on a small amount of blood. The hematocrit is the volume of erythrocytes expressed as a percentage of the volume of whole blood.

Collection Method

Venous Draw / Capillary Puncture

Minimum Volume

1 mL

Preferred Specimen

Whole blood EDTA or free flowing capillary blood

Acceptable Specimens

3 or 4 mL EDTA tubes or EDTA Map tubes (microtainers), Microhemoticrit 75 mm capillary tubes (minimum of 2 capillary tubes)

Reference or Target Ranges

Males   Females    
Birth – 7 days 42.0 – 60.0% Birth – 7 days 42.0 – 60.0%
8 – 14 days 39.0 – 60.0% 8 – 14 days 39.0 – 60.0%
15 days – 1 month 31.0 – 55.0% 15 days – 1 month 31.0 – 55.0%
2 – 5 months 28.0 – 42.0% 2 – 5 months 28.0 – 42.0%
6 months – 1 year 33.0 – 40.0% 6 months – 1 years 33.0 – 40.0%
2 years 33.0 – 42.0% 2 years 33.0 – 42.0%
3 – 5 years 33.0 – 43.0% 3 – 5 years 35.0 – 44.0%
6 – 11 years 35.8 – 42.4% 6 – 11 years 35.7 – 43.0%
12 – 15 years 37.3 – 47.3% 12 – 15 years 36.3 – 43.4%
Adults 38.8 – 50.0% Adults 34.9 – 44.5%

Reportable Units

%

Critical Value

Parameter Low value High value
Hematocrit (any age) <21% >65%
Hematocrit (0 – 24 hours) <42% >65%

Reasons for Rejection

Hemolysis Threshold N/A
Icterus Threshold N/A
Lipemia Threshold N/A
Other QNS, Clotted, Contaminated, Improperly Labeled, hemolyzed

Specimen Stability

Ambient 24 hours
Refrigerated (4°C to 8°C) 24 hours
Frozen(-70°C to 0°C) N/A

Performance Information

Days and Time Performed 24/7
Expected Turn Around Time Stat within 1 hour arrival in lab
Routine within 4 hours of arrival in lab
Stat Availabilty Yes
Performing Bench UH or WCH Hematology
Methodology/Method Description HemataStat II – Microprocessor technology

Special Handling

Deliver to laboratory ASAP

CPT Codes

85013