A nurse is preparing to administer betamethasone 12mg IM to a client at 32 weeks gestation at risk for preterm delivery.
Betamethasone is available as 6mg/ml. How many ml will the nurse prepare for injection? (Use a leading zero, if it applies. Do not use a trailing zero)
Do not use a trailing zero)
Step 2 is: 12 รท 6 = 2 ml. Answer: 2 ml
The Correct Answer is A
Step 1 is: 12 mg ÷ 6 mg/ml.
Step 2 is: 12 ÷ 6 = 2 ml. Answer: 2 ml
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Correct Answer is C
Explanation
Choice A rationale
The placenta does not provide thermoregulation; that function is managed by maternal thermoregulation and the amniotic fluid which insulates the fetus.
Choice B rationale
Amniotic fluid cushions the fetus from maternal movements, not the placenta. The placenta's role is more focused on nutrient and waste exchange.
Choice C rationale
The placenta facilitates metabolic functions and gas exchange, supplying oxygen and nutrients to the fetus while removing carbon dioxide and waste products, ensuring fetal development.
Choice D rationale
The placenta doesn't provide a sterile environment. This is accomplished by the amniotic sac and amniotic fluid. The placenta connects the fetus to maternal blood supply, ensuring necessary exchanges for fetal growth.
Correct Answer is B
Explanation
Choice A rationale
Precipitous labor is a rapid labor that typically lasts less than 3 hours. While it can result in trauma and complications, it does not inherently increase the risk for an operative delivery,
which is more often related to other factors like fetal distress or failure to progress.
Choice B rationale
Postpartum hemorrhage (PPH) is a significant concern with precipitous labor due to the rapid and forceful contractions that can cause uterine atony, leading to increased bleeding
after birth.
Choice C rationale
In a precipitous labor, the rapid delivery can cause vaginal lacerations, not a decreased risk. The swift passage of the baby through the birth canal increases the risk of tears and
trauma.
Choice D rationale
Neonatal sepsis is related to infections acquired during delivery but is not specifically linked to the speed of labor. The primary concern in precipitous labor is maternal trauma and
hemorrhage, not infection.