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HelpTest Code HH Hemoglobin and Hematocrit
Specimen and Container/Tube
Specimen Type: Whole blood
Preferred Specimen: lavender top
Other Acceptable specimens: not applicable
Volume
Preferred Volume: 4.0 mL
Minimum Volume: 1.0 mL
Specimen Stability
|
Storage Temperature |
Stability |
|
Room temperature (20 - 25°C) |
24 hours |
|
Refrigerated (2 - 10°C) |
24 hours |
|
Frozen (-20°C) |
not acceptable |
Collection Instructions
Collect specimen per standard laboratory collection procedures.
Specimen Handling and Transport Instructions
UCMC Onsite Instructions: Collect specimen per standard collection procedure and send to laboratory immediately.
UCMC Offsite and UC MedLab Outreach Instructions: Collect specimen per standard collection procedure and send to laboratory immediately. Specimens must be received within 8 hours. If transport is delayed, refrigerate specimens prior to transport.
Rejection Criteria
- Common specimen rejected situations include: incorrect specimen type, insufficient volume, missing or incomplete specimen identifiers, incorrect specimen transport, or specimens outside stability limits.
- Frozen or heated specimens will be rejected
- Clotted or quantity not sufficient specimens are not suitable for testing and will be rejected
Reference Values
|
Analyte |
Age |
Sex |
Reference Range |
|
HGB |
0 days |
Male and female |
13.2 - 19.1 g/dL |
|
HGB |
1 day |
Male and female |
14.2 – 22.1 g/dL |
|
HGB |
7 days |
Male and female |
13.2 – 21.1 g/dL |
|
HGB |
14 days |
Male and female |
12.3 – 20.1 g/dL |
|
HGB |
1 month |
Male and female |
9.8 – 17.6 g/dL |
|
HGB |
2 months |
Male and female |
8.8 – 13.7 g/dL |
|
HGB |
3 months |
Male and female |
9.3 – 13.2 g/dL |
|
HGB |
6 months |
Male and female |
10.3 – 13.2 g/dL |
|
HGB |
2 years |
Male and female |
11.3 – 13.2 g/dL |
|
HGB |
6 years |
Male and female |
11.3 – 15.2 g/dL |
|
HGB |
12 years and up |
Male |
13.5 – 17.5 g/dL |
|
HGB |
12 years and up |
Female |
11.5 – 15.5 g/dL |
|
HCT |
0 days |
Male and female |
42 – 60 % |
|
HCT |
1 day |
Male and female |
45 - 67 % |
|
HCT |
7 days |
Male and female |
42 – 66 % |
|
HCT |
14 days |
Male and female |
39 – 63 % |
|
HCT |
1 month |
Male and female |
31 – 55 % |
|
HCT |
2 months |
Male and female |
28 – 42 % |
|
HCT |
3 months |
Male and female |
29 – 41 % |
|
HCT |
6 months |
Male and female |
33 – 39 % |
|
HCT |
2 years |
Male and female |
34 – 40 % |
|
HCT |
6 years |
Male and female |
35 – 45 % |
|
HCT |
12 years and up |
Male |
41 – 53 % |
|
HCT |
12 years and up |
Female |
36 – 47 % |
Critical Values
|
Analyte |
Unit |
Low |
High |
Age |
|
HCT |
% |
20 |
60 >69.0 patients <30 days |
All |
|
HGB |
g/dL |
<6.0 |
>20.0 >22.0 patients <30 days |
All |
Clinical Indications
- Screening test for various diseases
- Useful in the diagnosis of disease states such as anemias, leukemias, allergic reactions, viral, bacterial, and parasitic infections.
Test Components
HGB, HCT
Methodology
Sysmex XN
CPT Codes
85014 and 85018
LOINC Codes
HCT 4544-3, HGB 718-7
Additional Information
Not applicable
Turnaround Time
Turnaround times are relative to the time the specimen is received in the test laboratory.
STAT Turnaround Time: 60 minutes
Routine Turnaround Time: 240 minutes
Testing Schedule: 24/7
Synonyms/Search Keywords
Not applicable
Last Reviewed Date
9/5/2024