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Test Code HGB Hemoglobin

Specimen and Container/Tube

Specimen Type: Whole blood

Preferred Specimen: lavender top

Other Acceptable specimens: not applicable 

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

Critical Values

Analyte

Unit

Low

High

Age

HGB

g/dL

<6.0

>20.0

>22.0 patients <30 days

All

 

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

CPT Codes

85018

LOINC Codes

HGB 718-7

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. 

Test Components

HGB

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. 

Methodology

Sysmex XN

Synonyms/Search Keywords

Not applicable

Additional Information

Not applicable

Last Reviewed Date

9/5/2024