Practice Question
The nurse administers vitamin K intramuscularly as prophylaxis to the newborn based on which of the following rationales? Select one:
Answer Choices:
Correct Answer:
Vitamin K will promote blood clotting ability.
Rationale:
🟢 Newborns are born with low levels of vitamin K, which is essential for the activation of clotting factors II, VII, IX, and X—proteins necessary for normal blood coagulation.
🟢 This deficiency occurs because vitamin K does not cross the placenta efficiently, and the gut flora needed to synthesize it is not yet established in the newborn.
🟢 Without supplementation, infants are at risk for Vitamin K Deficiency Bleeding (VKDB), which can be life-threatening and may occur within the first few days to months of life.
🟢 A single intramuscular dose of vitamin K (usually 1 mg IM) is given at birth to prevent spontaneous internal or external bleeding, including dangerous intracranial hemorrhage.
🟢 It does not affect bilirubin metabolism, erythropoiesis, or Rh sensitization.
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This question is from RN ATI Maternity Exam III which contains 55 questions.
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Question Details
- Category: RN Nursing Exam(s)
- Subcategory: ATI Exam(s)
- Domain: RN ATI Maternal & Newborn Care
- Answer Choices: 4