Hematocrit, Whole Blood

Specimen Tube Type Transport

Lavender Top Tube

Container Whole Blood Required

3 ml whole blood in a Lavender Top

Critical Value

For all ages and sex greater than 18 years results <20% or >60%

Summary Test Name

Hematocrit, Whole Blood

Specimen Preparation Outreach

Refrigerate until courier pickup

Specimen Stability

48 hours if refrigerated or 12 hours at room temperature

Minimum Volume

0.5 ml whole blood in a Lavender Microtainer 1.0 ml whole blood in a Pediatric Lavender Top 2.5 ml whole blood in a 3 ml Lavender Top Capillary tubes - Two heparinized, 0.5 to 0.75 % full

Specimen Transport

Refrigerate

Specimen Preparation In House

Refrigerate until analysis

Stat Availability

24 hours a day, seven days a week

Test Turnaround Time Routines And Stats

R 4 hours S 1 hour

Reference Value

age from	age to	age units	gender	low	high
0	1	days	M/F	42	62
1	3	days	M/F	44	67
3	7	days	M/F	42	67
1	2	weeks	M/F	39	66
2	4	weeks	M/F	31	63
1	2	months	M/F	28	55
2	3	months	M/F	28	42
3	6	months	M/F	29	41
6	24	months	M/F	33	39
2	6	years	M/F	34	40
6	12	years	M/F	35	45
12	18	years	F	36	46
12	16	years	M	37	49
16	18	years	M	37	50
18	and up	years	F	35	44
18	and up	years	M	39	48