Test Directory

Activated Partial Thromboplastin Time (APTT)

Containers - Adult

S-Monovette Citrate 9NC, 2.9 ml, cap green, diameter 13 mm
S-Monovette Citrate 9NC, 2.9 ml, cap green, diameter 13 mm
Additive per Container

Sodium Citrate

Containers - Child

S-Monovette Citrate 9NC, 1.4 ml, cap green, diameter 8 mm
S-Monovette Citrate 9NC, 1.4 ml, cap green, diameter 8 mm
Additive per Container

Sodium Citrate

Reference ranges

 
APTT (secs)
*Neonates Day1 - 5
29.0 – 51.5
*Neonates Day5 - 21
28.0 – 55.0
*Infants Day 22 - 84
28.0 – 50.0
*Infants Day 85 - 175
28.0 – 45.0
*Infants Day176 - 1 year 
28.0 – 40.0
1 year - Adult
21.0 – 28.0
*Applies to term infants – preterm infants may have a different value.

Laboratory Site

RIE
51 Little France Crescent
Old Dalkeith Road
Edinburgh
EH16 4SA
Telephone: 0131 536 1000
SJH
Howden Road West
Howden
Livingston
West Lothian
EH54 6PP
Telephone: 01506 523000
WGH
Crewe Road South
Edinburgh
EH4 2XU
Telephone: 0131 537 1000

Transport arrangements

Specimen must be transported within a plastic sealable bag or other suitable container. Samples should be transported to the laboratory ASAP

Special instructions for collection

The coagulation samples (green top) MUST be filled to the green line indicated on the tube.

How to request

Request form or Trak

Availability

Monday - Friday: routine service 09:00 - 17:00. Saturday - Sunday: routine service 09:00 - 13:00
Please contact the laboratory for urgent samples outside of routine hours.

Anticipated turnaround

1 day

What happens if the result is positive or abnormal

The laboratory will telephone abnormal results where it appears that these are likely to be clinically significant.

General additional information

For information on the use of Monovettes, please click here - Monovette error flyer FINAL.doc