Oxygen concentrations that are toxic to the neonat

ATI RN

ATI RN Test Bank

Oxygen concentrations that are toxic to the neonatal lung is greater than

A. 20% B. 40% C. 60% D. 80%

Correct Answer: B

Rationale: Oxygen >40% (B) risks neonatal lung toxicity (e.g., BPD), per oxygenation guidelines.

In term infants, phototherapy is initiated when indirect bilirubin levels are between

A. 10 and 12 mg/dL B. 13 and 15 mg/dL C. 16 and 18 mg/dL D. 19 and 21 mg/dL

Correct Answer: C

Rationale: Phototherapy in term infants starts at 16-18 mg/dL (C), per AAP guidelines, balancing risk and intervention.

The classic hemorrhagic disease of the newborn (HDN) usually occurs between 3 and 7 days of life, early HDN occurs at the 1st day if mother receive

A. aspirin B. heparin C. tegretol D. rifampin

Correct Answer: C

Rationale: Early HDN on day 1 occurs with maternal anticonvulsants like tegretol (C), inducing vitamin K deficiency, per pharmacology.

The diagnosis of a neonatal pneumothorax may be confirmed by

A. chest MRI B. chest CT scan C. chest radiograph D. chest ultrasound

Correct Answer: C

Rationale: Chest radiograph (C) is the standard for confirming neonatal pneumothorax, per diagnostic protocols.

Early clamping of umbilical cord may lead to all the following EXCEPT

A. anemia B. less tachypnea C. cardiac murmur D. poor peripheral perfusion

Correct Answer: B

Rationale: Early clamping risks anemia (A), murmur (C), and poor perfusion (D). Less tachypnea (B) isnâ€™t an effect; it may worsen breathing.

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