A nurse is caring for a client who is postpartum. Which of the following findings is an indication for the nurse to administer Rho(D) immune globulin?

The correct answer is choice d. Vastus lateralis.

Choice A rationale:

The deltoid muscle is not typically used for newborn injections because it is too small and underdeveloped, making it an inappropriate site for intramuscular injections in this age group.

Choice B rationale:

The dorsogluteal muscle is also not recommended for newborns due to the risk of injury to the sciatic nerve and the muscle’s underdevelopment.

Choice C rationale:

The ventrogluteal muscle, while a good site for older children and adults, is not commonly used for newborns because it is not as easily accessible and developed as the vastus lateralis.

Choice D rationale:

The vastus lateralis muscle, located on the anterolateral aspect of the thigh, is the preferred site for intramuscular injections in newborns. It is well-developed and provides a large muscle mass, making it the safest and most effective site for administering vitamin K.

Choice A rationale:

A fetal heart rate of 100/min for a 10-minute period is considered within the normal range. The normal fetal heart rate can range from 110 to 160 beats per minute, and a rate of 100 is not concerning.

Choice B rationale:

The resting period of a contraction refers to the time between contractions when the uterus is relaxed. A resting period of 35 seconds is also considered normal. In labor, the resting period between contractions allows the placenta to receive oxygen and nutrients, and 35 seconds is a rationaleable duration.

Choice C rationale:

A contraction lasting 85 seconds is abnormal and should be reported to the provider. Normally, contractions last around 60-90 seconds, but an 85-second contraction may indicate uterine hyperactivity or other issues that could potentially affect the well-being of both the mother and the baby.

Choice D rationale:

Having four contractions in a 10-minute period is considered normal during labor. In fact, an average pattern includes 3-5 contractions within a 10-minute window, so this finding is not a cause for concern.