What is the maximum amount of a childs blood volume that may be removed over a 1 month period?

Clinical System Name

None specified

Synonyms

Blood Draw
Phlebotomy

Sample Requirements

Specimen: See note

Container(s): See note

Preferred Vol: See note

Minimum Vol: See note

Note:  See Blood Draw Tools on Laboratory department page on Child.

Processing Instructions

Reject due to:

Spin:

Aliquot:

Temp:

Storage location: See Blood Draw Tools on Laboratory department page on Child.

Off-site collection:

Stability

Specimen TypeTemperatureTime
  Room temp
  Refrigerated  
  Frozen

Availability

STATPerformedTAT
N None specified None specified

Performing Laboratory

None specified

Department

Department:  None specified

Phone Number

Methodology

Method: None specfied

Analytical Volume: None specified

Limitations:

Reference Range

Body wt in kg Max drawn in one blood draw Maximum drawn in a 30 day period
  2.5% of total blood volume 5% of total blood volume
1 kg 2.5 ml 5.0 ml
2 kg 4.5 ml 9.0 ml
3 kg 6 ml 12 ml
4 kg 8 ml 16 ml
5 kg 10 ml 20 ml
6 kg 12 ml 24 ml
7 kg 14 ml 28 ml
8 kg 16 ml 32 ml
9 kg 18 ml 36 ml
10 kg 20 ml 40 ml
11 thru 15 kg 22 - 30 ml 44 - 60 ml
16 thru 20 kg 32 - 40 ml 64 - 80 ml
21 thru 25 kg 42 - 50 ml 84 - 100 ml
26 thru 30 kg 52 - 60 ml 104 - 120 ml
31 thru 35 kg 62 - 70 ml 124 - 140 ml
36 thru 40 kg 72 - 80 ml 144 - 160 ml
41 thru 45 kg 82 - 90 ml 164 - 180 ml
46 thru 50 kg 92 - 100 ml 184 - 200 ml
Greater than 50 kg 100 ml 200 ml

For requests greater than the maximum draw, please contact the attending physician for approval of additional amount.
 

Send Out Instructions

Reference Test Name: None specified
Reference Test Number:

None specified

Instructions:

None specified

How much blood can you withdraw from an infant?

According to research on safe blood draws in infants, it is recommended by several studies and guidelines that the maximum amount of blood drawn from infants and children in 24 hours be between 1% and 5% of the total blood volume (TBV) of the child. Ideally, the amount should be less than 3% of the TBV.

What is the blood volume of a child?

In general, a healthy child does not require transfusion unless the hematocrit has fallen to the 20-25 range for an infant, or 20 for a child. ... Maximum allowable blood loss..

What is the maximum amount of blood that can be drawn?

Adults. Blood draws for healthy adults should be limited to 10.5mL/kg subject body weight or 550 mL, whichever is less, over an 8-week period. NOTE: The administration of blood transfusions does not alter the suggested maximum volume to be drawn.

What is the required specimen amount when collecting blood culture on an infant?

A blood culture is an essential laboratory procedure necessary to confirm a septic episode. However, it is important to collect the blood sample at the appropriate time with an acceptable technique. The standard method is to collect at least 5 to 10 ml blood per culture bottle from patients with fevers.