NHA Phlebotomy Certification Practice Exam

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Prepare for the NHA Phlebotomy Certification Exam. Learn with study guides and multiple choice questions. Each question offers detailed explanations. Achieve success on your certification test.

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What is the average total blood volume for a 3.3 kg infant?

120-200 ml
240-330 ml
400-500 ml
600-750 ml

The correct answer is: 240-330 ml

The average total blood volume for an infant is generally calculated to be approximately 70-80 ml per kilogram of body weight. For a 3.3 kg infant, this would translate to a total blood volume of about 231 to 264 ml, which falls within the range of 240-330 ml. This volume is important for various medical procedures and assessments, such as calculating fluid resuscitation needs or understanding the implications of blood loss in pediatric patients. Knowledge of blood volume is critical in the phlebotomy field, particularly when dealing with young patients, as it helps professionals ensure they are drawing the correct amount of blood and not exceeding safe limits. The other ranges suggested do not accurately align with the established average blood volume calculation for a 3.3 kg infant. Therefore, the selection of 240-330 ml as the total blood volume is both reasonable and aligned with pediatric medical standards.