Hemoglobin and Calculated Hematocrit

Label Mnemonic:	HBC
Epic code:	LAB617
Downtime form:	Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Critical Care - Relocated to Core Laboratory
6240 RCP
356-3527

Specimen(s):

Whole Blood

Collection Medium:

Heparinized syringe or Green top tube (Na Heparin)

Minimum:

0.5 mL in Lithium/Sodium Heparin syringes

Turn Around Time:

10 minutes (upon receipt in laboratory)

Reference Range:

Hemoglobin                       Males           Females
18 years+                    13.2-17.7 g/dL   11.9-15.5 g/dL 
11 years - <18 years         12.7-17.0 g/dL   11.9-15.0 g/dL
5 years - <11 years          11.9-15.0 g/dL   11.9-15.0 g/dL
1 year - <5 years            10.9-15.0 g/dL   10.9-15.0 g/dL
6 months - <1 year           11.3-14.1 g/dL   11.3-14.1 g/dL
3 months - <6 months*         9.5-14.1 g/dL    9.5-14.1 g/dL
2 months - <3 months*         9.0-14.1 g/dL    9.0-14.1 g/dL
31 days - <2 months*         10.7-17.1 g/dL   10.7-17.1 g/dL
0 - <31 days*                13.4-19.9 g/dL   13.4-19.9 g/dL
*values refer to full term infants

Hematocrit                     Males          Females
18 years+                      40-52%         35-47%
11 years - <18 years           37-48%         34-44%
5 years - <11 years            35-44%         35-44%
1 year - <5 years              31-44%         31-44%
6 months - <1 year             31-41%         31-41%
3 months - <6 months*          29-41%         29-41%
2 months - <3 months*          28-41%         28-41%
31 days - <2 months*           33-54%         33-54%
0 - <31 days*                  42-64%         42-64%
*values refer to full term infants

Critical Care Critical Values:
  Hemoglobin <6.0g/dL and >22.0g/dL

Special Care Nurseries Critical Values:
  Hemoglobin <8.0g/dL and >22.0g/dL

Comments:

Can be ordered with blood gases (0.5 mL blood required); all needles must be removed from the syringe before delivery.

This test is also performed in the Iowa River Landing (IRL) clinical laboratory (for specimens drawn at that site).

Methodology:

Oximetric

CPT Code:

85018