Overview

EPIC Code:
LAB753

Soft Test Code:
HH

Alternate Names

H & H
H&H

Included Tests

Hemoglobin (HGB); Hematocrit (HCT)

Specimen Collection & Preparation

Specimen Requirements:

-OR-

3.0 mL Whole Blood in a Lavender Top Tube - EDTA

Minimum Volume:

1.5 mL Whole Blood*

* This volume does not allow for repeat testing

Collection Instructions:

Mix tube by inversion 5 times

Do not centrifuge

Specimens must not be clotted. Overfilling or underfilling may allow blood to clot. Specimens may be rejected due to improper storage or age of specimen.

Rejection Criteria:

Clotted specimens

Transport and Storage:

Ambient (18-24°C): 24 Hours

Refrigerated (2-8°C): 72 Hours

Clinical Interpretation

Reference Range:

Males > 14 Years:

HGB: 13.5 - 17.2 g/dL

HCT: 40.0 - 54.0%

Females > 14 Years:

HBG: 12.0 - 15.5 g/dL

HCT: 35.0 - 48.0%

Critical Ranges:

NICU <= 15 days old Critical Limits:
HCT: <= 30% and >= 70%

NICU >15 days old Critical Limits:
HCT: <= 25% and >= 70%

Pediatric (<= 15 days old) Low Critical Limit:

HGB: <= 10.0 g/dl

Pediatric (<= 15 days old) High Critical Limits:

HGB: >= 24.0 g/dl

HCT: >= 70.0%

Low Critical Limit:

HGB: <= 6.0 g/dl

High Critical Limit:

HGB: >= 19.0 g/dl

Inpatient Oncology Low Critical Limit:

HGB: <=5.0 g/dl

OHP Low Critical Limit:

HGB: <= 7.5 g/dl

Methodology:

Blood Cell Analyzer

Production Schedule

Days Performed

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Departments

Hematology

Turn Around Time

Same day/1 to 2 days

Coding & Compliance

CDM

01433007, 01432998

CPT Coding

85014, 85018

Hemoglobin and Hematocrit