View source for Tests:Activated Partial Thromboplastin Time

{{DISPLAYTITLE:Activated Partial Thromboplastin Time (APTT)}}
{| class="wikitable"
|-
|'''Synonym(s)'''
|APTT, PTT
|-
|'''Specimen'''
|2.7 mL Sodium Citrate (Blue top - Must be FULL)
|-
|'''Paediatric Specimen'''
|1.8 mL Sodium Citrate ONLY (Blue top - Must be FULL)
|-
|'''Minimum Volumes'''
|Citrate tube must be FULL. 
Separated plasma - 1mL
|-
|'''Add-on conditions'''
|4 hours @ 4°C
|-
|'''Test Availability'''
|Mon - Sun, 24 hours
|-
|'''Turnaround Time'''
|Hastings 1 - 2.5 hours / Central HB 6 - 8 hours / Wairoa 12 hours
|-
|'''Where analysed'''
|Hastings
|-
|'''Department'''
|Haematology, (06) 878 1308 ext. 6249
|-
|'''Registration Code'''
|HPTT
|-
|'''Deletion Code'''
|7171
|-
|'''Useful Information'''
|Samples that will take longer than 4 hours to arrive at the Hastings Laboratory should be separated and frozen for transport.
|-
|'''Measurement Uncertainty'''
|Available upon request
|}
[[Category:Tests]]
[[Category:Haematology]]