Correct Answer: B

Rationale: A newborn's respiratory rate can vary between 20 to 100 breaths per minute during the initial phase after birth. A respiratory rate as low as 18 breaths per minute at this early stage requires immediate nursing intervention. This finding necessitates further assessment to ensure adequate oxygenation and respiratory function. The other options, heart rate of 168/min, tremors, and fine crackles, are within normal limits for a full-term newborn and do not require immediate intervention.

Correct Answer: C

Rationale: To administer magnesium sulfate 2 g/hr IV, the healthcare professional should set the IV infusion pump to administer 50 mL/hr. The calculation is as follows: 20 g / 500 mL = 2 g / X mL, X = 50 mL/hr. Choice A (60 mL/hr) is incorrect as it does not match the calculated rate. Choice B (30 mL/hr) is incorrect as it is half of the calculated rate. Choice D (80 mL/hr) is incorrect as it is higher than the calculated rate.

Correct Answer: D

Rationale: Placing the newborn skin-to-skin on the mother's chest is an effective technique to significantly decrease the newborn's pain level and anxiety during a heel stick procedure. This approach provides comfort, warmth, and familiarity to the newborn, promoting a sense of security and reducing distress. It is important for the healthcare professional to implement this technique before, during, and after the procedure to optimize pain management and support newborn well-being. The other options, such as applying a cool pack, requesting an IM analgesic prescription, and using a manual lancet, are not appropriate for minimizing pain in a newborn during a heel stick procedure. Applying a cool pack may cause vasoconstriction and increase pain, requesting an IM analgesic for a routine heel stick is excessive, and using a manual lancet without additional comforting measures may not adequately address the newborn's pain and anxiety.

Correct Answer: B

Rationale: Chloasma, also known as the mask of pregnancy, is a blotchy, brown hyperpigmentation of the skin over the cheeks, nose, and forehead. It is most common in dark-skinned women and is caused by an increase in melanotropin during pregnancy. This condition typically appears after 16 weeks of gestation and gradually increases until delivery for 50 to 70% of women. The nurse should reassure the client that this is an expected occurrence, which usually fades after delivery. Therefore, explaining to the client that this is an expected occurrence is the appropriate action in this situation. Options A, C, and D are incorrect because chloasma is a common skin change during pregnancy and does not require a referral to a dermatologist, an increase in vitamin D intake, or suspicion of an allergy to skin care products.

Correct Answer: B

Rationale: During pregnancy, weight gain is expected. The client's understanding is demonstrated by acknowledging the need for alternative sexual positions due to the physiological changes, such as weight gain and a growing abdomen. This statement reflects comprehension of the teaching provided by the healthcare provider.