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HelpTest Code HCT or LAB289 Hematocrit, Blood
Specimen Requirements
|
Container Type: |
Optimal: EDTA Lavender Top, whole blood
Acceptable: EDTA Microtainer |
|
Optimal Collection Volume: |
3 mL |
|
Minimum Volume: |
1 mL or 0.4 mL in EDTA microtainer |
|
Collection Instructions: |
Gently invert the sample tube 5-6 times after collection to mix the blood. |
|
Specimen Transport Temperature: |
Refrigerated |
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Processing Instructions: |
1. Keep the specimen as whole blood for testing. 2. Store the specimens refrigerated prior to testing. 3. Allow refrigerated samples to come to room temperature and mix well before analysis. |
Specimen Stability
|
Specimen Type |
Temperature |
Time |
|---|---|---|
|
Whole blood |
Refrigerated |
48 hours |
|
Room Temperature |
24 hours |
Specimen Rejection Criteria
|
Hemolysis |
Mild OK; Moderate OK; Gross Reject |
|
Other |
Clotted specimens are rejected. |
Useful For
Measuring the amount of hematocrit in blood.
Methodology
Sysmex XN - Cumulative pulse height detection
Reference Ranges
Males (>12 years)
|
Test ID |
Reference Range and Reporting Units |
|---|---|
|
HCT |
41-51% |
Females (>12 years)
|
Test ID |
Reference Range and Reporting Units |
|---|---|
|
HCT |
36-47% |
Pediatrics
|
Test ID |
Age Group |
Reference Range and Reporting Units |
|---|---|---|
|
HCT |
0-1 day |
42-61% |
|
2-6 days |
42-61% |
|
|
7-14 days |
39-60% |
|
|
15-30 days |
31-58% |
|
|
1-6 months |
28-45% |
|
|
6 mth to 2 years |
33-42% |
|
|
2-6 years |
34-42% |
|
|
6-12 years |
35-45% |
Critical Values
Age group: > 3 months
- Low: ≤ 15%
- High: ≥ 75%
Age group: < 3 months
- Low: ≤20%
- High: ≥70%
Day(s) Performed
24/7
Expected TAT
Same day
Performing Laboratory
Bronson Laboratory, Hematology - Kalamazoo, Battle Creek, Paw Paw, South Haven
Sample Retention Time
7 days
CPT Code
85014
LOINC Code
4544-3