TY - CHAP M1 - Book, Section TI - Venous Access: Venipuncture (Phlebotomy) A1 - Gomella, Tricia Lacy A1 - Cunningham, M. Douglas A1 - Eyal, Fabien G. A1 - Tuttle, Deborah J. PY - 2013 T2 - Neonatology: Management, Procedures, On-Call Problems, Diseases, and Drugs, 7e AB - Note: Cochrane review states that venipuncture, by a skilled operator, is the method of choice for blood sampling in term infants. It was found to be less painful than heelstick sampling and a more effective sampling method. To obtain a blood sample for routine analysis or blood culture. Venipuncture typically allows a larger volume of blood (recommended if ≥1 mL needed) to be collected and is the method of choice for obtaining blood cultures. It is preferred over capillary blood sampling for certain tests (drug levels, hemoglobin/hematocrit, karyotype, coagulation studies, cross-matching blood, and ammonia, lactate, and pyruvate). Arterial blood is preferred for lactate, pyruvate, and ammonia.To obtain a central hematocrit. Venipuncture is more reliable than heelstick.Administer medications.Venous blood gas. This can be used in some diseases (neonatal sepsis/respiratory distress syndrome [RDS]) to diagnose acid-base imbalance if an arterial blood gas can't be obtained. Although arterial blood gas is preferred, venous samples show good validity in terms of pH, Pco2, and HCO3. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/29 UR - accesspediatrics.mhmedical.com/content.aspx?aid=1107527613 ER -