Test:Beta HCG, Blood (POCT): Difference between revisions

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{{DISPLAYTITLE:Beta HCG, Blood(POCT)}}  
{{DISPLAYTITLE:Beta HCG, Blood (POCT)}}  
[[Category:Tests]]
[[Category:Tests]]
[[Category:POCT]]
[[Category:POCT]]
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|-
|-
|'''Availability'''
|'''Availability'''
|Monday - Sunday, available out of hours for emergency
|Monday - Sunday at Hawera Hospital, available out of hours for emergencies
|-
|-
|'''Turnaround Time'''
|'''Turnaround Time'''
|As and when the Ketone meters are available.
|10 minutes once cartridge is loaded into the i-Stat
Results once tested - 10 seconds
|-
|-
|'''Stability – Add test'''
|'''Stability – Add test'''
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|-
|-
|'''Specimen'''
|'''Specimen'''
|Whole Blood  
|Venous sample collected into Heparinized
|-
|-
|'''Preferred'''
|'''Preferred'''
|Finger Stab - Droplet of Whole blood  
|Heparinized whole blood or plasma samples collected in plastic syringes or evacuated tubes containing lithium or sodium heparin filled to capacity.
|-
|-
|'''Acceptable'''
|'''Acceptable'''
|Blood Gas, Purple top (EDTA), 0.6 µL capillary sample collected directly onto a Statstrip test strip
|Heparinized whole blood or plasma samples collected in plastic syringes or evacuated tubes containing lithium or sodium heparin filled to capacity.  
|-
|-
|'''Unacceptable'''
|'''Unacceptable'''
|Samples older than 4 hours
|Grossly haemolysed samples are unacceptable
Neonate samples
 
Separated samples
|-
|-
|'''Minimum Volume'''
|'''Minimum Volume'''
|0.6 µL whole blood
|17 IU/L whole blood
|-
|-
|'''Specimen Collection and Transportation'''
|'''Specimen Collection and Transportation'''
|Clean and dry patients' hand and wipe away the first drop of blood.
|
|-
|-
! colspan="2" |
! colspan="2" |
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|-
|-
|'''Test Method'''
|'''Test Method'''
|Nova StatStrip Xpress 1/2 handheld device and Ketone StatStrip
|i-Stat - Total β-hCG Cartridge
|-
|-
|'''Unit of Measurement'''
|'''Unit of Measurement'''
| mmol/L
| IU/L
|-
|-
|'''Reference Intervals'''
|'''Reference Intervals'''
|<0.3 mmol/L
|Reportable range 5.0 – 2000.0 IU/L
< 5.0 IU/L -  Negative
 
> 5.0 - 25.0 IU/L - Equivocal / Indeterminate
 
>25.0 IU/L - Positive               
|-
|-
|'''Uncertainty of measurement'''
|'''Uncertainty of measurement'''
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|-
|-
|'''Additional Information'''
|'''Additional Information'''
|Ketones include acetoacetic acid, beta-hydroxybutyric acid and acetone. The relative proportions of all ketones depend on the severity of the ketosis and the availability of NADH for metabolism. Beta-hydroxybutyric acid (OHB) can be added up to 4 hrs pos.
|Provides a quantitative and qualitative determination of ''β-hCG'' to aid in the early detection of pregnancy
Ketone Measuring range 0.1 -7.0mmol/L
|-
|-
! colspan="2" |
! colspan="2" |

Revision as of 12:48, 3 October 2025

Overview

Department Point of Care Testing (POCT)
Test Code N/A
Synonyms Pregnancy related HCG

HCG - pregnancy test

BHCG - pregnancy test

Pregnancy test

Human chorionic gonadotrophin - pregnancy related

Availability Monday - Sunday at Hawera Hospital, available out of hours for emergencies
Turnaround Time 10 minutes once cartridge is loaded into the i-Stat
Stability – Add test N/A

Specimen Requirements

Specimen Venous sample collected into Heparinized
Preferred Heparinized whole blood or plasma samples collected in plastic syringes or evacuated tubes containing lithium or sodium heparin filled to capacity.
Acceptable Heparinized whole blood or plasma samples collected in plastic syringes or evacuated tubes containing lithium or sodium heparin filled to capacity.
Unacceptable Grossly haemolysed samples are unacceptable
Minimum Volume 17 IU/L whole blood
Specimen Collection and Transportation

Test Information

Test Method i-Stat - Total β-hCG Cartridge
Unit of Measurement IU/L
Reference Intervals Reportable range 5.0 – 2000.0 IU/L

< 5.0 IU/L - Negative

> 5.0 - 25.0 IU/L - Equivocal / Indeterminate

>25.0 IU/L - Positive               

Uncertainty of measurement N/A
Additional Information Provides a quantitative and qualitative determination of β-hCG to aid in the early detection of pregnancy

Comments

Quick user guides for testing should be available with the meter.

All procedures, worksheets and competency checklist for sign-off are available on the intranet to all Health NZ Staff.

This test is covered under the current IANZ Laboratory accreditation.

Owner Pam Chung (Pchung)
Last reviewed 03.10.2025
Next review 03.10.2026 (Due soon)
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