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Test Code HGBHT Hemoglobin and Hematocrit, Blood, LAB753

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements

Container/Tube:

Preferred: Lavender-Top (EDTA) Whole Blood

Specimen Volume: 300µL Whole Blood (3mL Lavender EDTA tube with minimum volume of 1mL), or 250µL Whole Blood (EDTA Microtainer)

Stability: Samples are stable for 24 hours at room temperature and up to 36 hours at 4°C.  Refrigerated samples must be allowed to come to room temperature before testing.

Collection Instructions: Forward promptly.

Reference Values

HGB g/dL

MALE

FEMALE

AGE

NORMAL

AGE

NORMAL

0-14 days

13.9-19.1

0-14 days

13.4-20.0

15-30 days

10.0-15.3

15-30 days

10.8-14.6

1 month – 2 months

8.9-12.7

1 month – 2 months

9.2-11.4

3 months – 5 months

9.6-12.4

3 months – 5 months

9.9-12.4

6 months – 23 months

10.1-12.5

6 months – 23 months

10.2-12.7

2-5 years

10.2-12.7

2-5 years

10.2-12.7

6-11 years

10.7-13.4

6-11 years

10.6-13.2

12-17 years

11.0-14.5

12-17 years

10.8-13.3

≥18 years

13.6-17.0

≥18 years

11.3-15.6

HCT %

MALE

FEMALE

AGE

NORMAL

AGE

NORMAL

0-14 days

39.8-53.6

0-14 days

39.6-57.2

15-30 days

30.5-45.0

15-30 days

32.0-44.5

1 month – 2 months

26.8-37.5

1 month – 2 months

27.7-35.1

3 months – 5 months

28.6-37.2

3 months – 5 months

29.5-37.1

6 months – 23 months

30.8-37.8

6 months – 23 months

30.9-37.9

2-5 years

31.0-37.7

2-5 years

31.2-37.8

6-11 years

32.2-39.8

6-11 years

32.4-39.5

12-17 years

33.9-43.5

12-17 years

33.4-40.4

≥18 years

40.0-52.0

≥18 years

35.0-47.0

 

 Critical Values

Less than

Greater than

Hemoglobin (0-14 days)

10.0 g/dL

25.0 g/dL

Hemoglobin (>14 days)

7.0 g/dL

20.0 g/dL

Hematocrit (0-14 days)

30.0%

70.0%

Hematocrit (15-30 days)

24.0%

70.0%

Hematocrit (>30 days)

21.0%

60.0%

 

Day(s) Test Set Up

Monday through Sunday

Useful For

Hemoglobin and Hematocrit can be helpful in the diagnosis of anemia.

Methodology

Quantitative Automated Hematology Analyzer Using Electronic Resistance Detection and Flow Cytometry

Test Classification and CPT Coding

85018 & 85014

Analytical Time

Within 30 minutes of specimen arrival

Report Available

STAT within 1 hour of receipt. Routine within 2 hours of receipt.