(72.) Nagel JW, Sims JS,Aplin CE,Westmark ER.Refractory hypoglycemia associated with a malpositioned umbilical artery catheter. Pediatrics 1979;64(3):315-317.
Slow blood sampling from an umbilical artery catheter prevents a decrease in cerebral oxygenation in the preterm newborn.
Umbilical artery catheters in the newborn: effects of heparin.
Ideal positions and undesirable positions for lines and tubes on neonatal chest X-rays (1,8) Type Ideal position External Cutaneous [O.sub.2] and N/A C[O.sub.2] monitors Cardiac leads N/A Thermometer N/A External part of pacing leads N/A Internal Endotracheal tube Medial clavicles Away from carina (1 - 1.5 cm) Head bent forward = low Head bent back = high Umbilical artery catheter
Above coeliac or below renal arteries Via internal iliac artery, i.e.