Clinical System NameNone specified Show
SynonymsBlood Draw Sample RequirementsSpecimen: 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 InstructionsReject due to: Spin: Aliquot: Temp: Storage location: See Blood Draw Tools on Laboratory department page on Child. Off-site collection: Stability
Availability
Performing LaboratoryNone specified DepartmentDepartment: None specified Phone Number: MethodologyMethod: None specfied Analytical Volume: None specified Limitations: Reference Range
For requests greater than the maximum draw, please contact the attending physician for approval of additional amount. Send Out Instructions
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.
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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.
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