If the patient has platelet clumping issues in EDTA, a Lt blue Sodium citrate (NaCit) tube must be collected in addition to the Lavender (EDTA), 4mL tube.
Immediately following collection, mix sample thoroughly by gentle inverting 8 - 10 times, to prevent clotting
Lavender (EDTA), 4mL
Refrigerated (preferred) - 48 hours
Ambient (OK) - 24 hours
Sysmex
| 
 Age/sex  | 
 Sex  | 
 Range (%)  | 
| 
 1 day  | 
 45 – 67  | 
|
| 
 1 wk  | 
 
  | 
 42 – 66  | 
| 
 2 wks  | 
 
  | 
 39 – 63  | 
| 
 1 mo  | 
 
  | 
 31 – 55  | 
| 
 2 mos  | 
 
  | 
 28 – 42  | 
| 
 3 – 6 mos  | 
 
  | 
 29 – 41  | 
| 
 6 mos – 2 yrs  | 
 
  | 
 33 – 49  | 
| 
 2 – 6 yrs  | 
 
  | 
 34 – 40  | 
| 
 6 – 12 yrs  | 
 
  | 
 35 – 45  | 
| 
 12 – 18 yrs  | 
 Male  | 
 36 – 51  | 
| 
 12 – 18 yrs  | 
 Female  | 
 33 – 51  | 
| 
 >18 yrs  | 
 Male  | 
 37 – 53  | 
| 
 >18 yrs  | 
 Female  | 
 33 – 51  |