HESI LPN
HESI Focus on Maternity Exam
1. A newborn with a respiratory rate of 40 breaths per minute at one minute after birth is demonstrating cyanosis of the hands and feet. What action should a nurse take?
- A. Assess bowel sounds.
- B. Continue to monitor.
- C. Assist with intubation.
- D. Rub the infant's back.
Correct answer: B
Rationale: Cyanosis of the hands and feet, known as acrocyanosis, is common in newborns shortly after birth and usually resolves on its own. It is not indicative of a need for immediate intervention. Therefore, the appropriate action is to continue monitoring the newborn's condition. Assessing bowel sounds (Choice A) is not relevant to the presenting issue of cyanosis and respiratory rate. Assisting with intubation (Choice C) is an invasive procedure that is not warranted based on the information provided. Rubbing the infant's back (Choice D) is not necessary for acrocyanosis and could potentially disturb the newborn.
2. Which of the following statements about Rh incompatibility is true?
- A. Rh incompatibility occurs most commonly during a woman’s first pregnancy.
- B. Rh incompatibility is an untreatable condition that leaves a woman infertile for the rest of her life.
- C. Rh incompatibility is an abnormality that is transmitted from generation to generation and carried by a sex chromosome.
- D. Rh incompatibility occurs due to antibodies transmitted to a fetus during subsequent deliveries causing brain damage or death.
Correct answer: D
Rationale: Rh incompatibility occurs when the mother's antibodies attack the fetus's red blood cells, leading to serious complications, usually in subsequent pregnancies. Choice A is incorrect because Rh incompatibility often occurs in subsequent pregnancies, not necessarily the first one. Choice B is incorrect as Rh incompatibility does not render a woman infertile but can lead to complications during pregnancies. Choice C is incorrect as Rh incompatibility is not carried by a sex chromosome but involves the Rh factor on red blood cells.
3. A client is experiencing preterm labor and has a prescription for 4 doses of dexamethasone 6 mg IM every 12 hours. The available concentration is dexamethasone 10 mg/mL. How many mL of dexamethasone should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use trailing zero.)
- A. 0.6 mL
- B. ---
- C. ---
- D. ---
Correct answer: A
Rationale: Calculation: (6 mg/dose) / (10 mg/mL) = 0.6 mL per dose. The correct answer is 0.6 mL. This calculation is obtained by dividing the dose needed (6 mg) by the concentration available (10 mg/mL). The resulting value is 0.6 mL per dose. Choices B, C, and D are not applicable as the correct answer has been calculated accurately.
4. What should be the primary focus of nursing care in the transitional phase of labor for a client who anticipates an unmedicated delivery?
- A. Assessing the strength of uterine contractions
- B. Re-evaluating the need for medication
- C. Reminding her to push 3 times with each contraction
- D. Assisting her to maintain control
Correct answer: D
Rationale: During the transitional phase of labor, which is the most intense phase, the primary focus of nursing care for a client who anticipates an unmedicated delivery should be assisting her to maintain control. This is essential to help her manage the intense pain and anxiety associated with this phase without the use of medication. Assessing the strength of uterine contractions (Choice A) is important but not the primary focus during the transitional phase. Re-evaluating the need for medication (Choice B) is not applicable as the client anticipates an unmedicated delivery. Reminding her to push 3 times with each contraction (Choice C) is more related to the pushing stage of labor and not the transitional phase.
5. Which synthetic hormone is used to prevent miscarriages and can cause masculinization of the fetus?
- A. Testosterone
- B. Estrogen
- C. Progestin
- D. Oxytocin
Correct answer: C
Rationale: Progestin is the synthetic hormone used to prevent miscarriages. While it is beneficial in maintaining pregnancy, in some cases, it can lead to masculinization of the fetus. Testosterone (Choice A) and estrogen (Choice B) are not typically used to prevent miscarriages and do not cause masculinization of the fetus in this context. Oxytocin (Choice D) is a hormone involved in labor and breastfeeding, but it is not used to prevent miscarriages nor does it cause masculinization of the fetus.
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