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
Room temp | ||
Refrigerated | ||
Frozen |
Availability
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.