Nursing Elites

1. A client is scheduled for a cesarean birth based on fetal lung maturity. Which finding indicates that the fetal lungs are mature?

• A. Absence of Phosphatidylglycerol (PG)
• B. Biophysical profile score of 8
• C. Lecithin/sphingomyelin (L/S) ratio of 2:1
• D. Reactive nonstress test

Correct answer: C

Rationale: An L/S ratio of 2:1 indicates fetal lung maturity, as it signifies the presence of surfactant in the amniotic fluid, which helps with lung expansion and prevents collapse at the end of expiration. The absence of PG indicates immaturity of the fetal lungs, as PG appears in the amniotic fluid during the later stages of lung maturation. Biophysical profile scores and nonstress tests are assessments of fetal well-being and do not directly indicate fetal lung maturity. Therefore, choice C is the correct answer.

2. A nurse is caring for a preterm newborn who is in an incubator to maintain a neutral thermal environment. The father of the newborn asks the nurse why this is necessary. Which of the following responses should the nurse make?

• A. Preterm newborns have a smaller body surface area than normal newborns.
• B. The added brown fat layer in a preterm newborn reduces his ability to generate heat.
• C. Preterm newborns lack adequate temperature control mechanisms.
• D. The heat in the incubator rapidly dries the sweat of preterm newborns.

Correct answer: C

Rationale: The correct answer is C because preterm newborns have immature temperature regulation mechanisms, making it difficult for them to maintain their body temperature. An incubator helps maintain a stable thermal environment. Choice A is incorrect as the body surface area is not the primary reason for needing an incubator. Choice B is incorrect because brown fat in preterm newborns actually helps generate heat. Choice D is incorrect as the purpose of the incubator is not to dry sweat but to regulate the newborn's temperature.

3. A client in labor is having contractions 4 minutes apart. Which of the following patterns should the nurse expect on the fetal monitoring tracing?

• A. Contractions that last for 60 seconds each with a 4-minute rest between contractions
• B. A contraction that lasts 4 minutes followed by a period of relaxation
• C. Contractions that last for 60 seconds each with a 3-minute rest between contractions
• D. Contractions that last 45 seconds each with a 3-minute rest between contractions

Correct answer: C

Rationale: The correct answer is C. When contractions are 4 minutes apart, it means there are 4 minutes from the start of one contraction to the start of the next. If each contraction lasts 60 seconds, there will be a 3-minute rest period between contractions. This allows for adequate uterine relaxation and recovery before the next contraction begins. Choice A is incorrect because it suggests a 4-minute rest between contractions, which is not accurate. Choice B is incorrect as contractions lasting 4 minutes continuously without rest would be concerning. Choice D is incorrect as it suggests 45-second contractions instead of 60-second contractions.

4. A client in an obstetrical clinic is discussing using an IUD for contraception with a healthcare provider. Which of the following statements by the client indicates an understanding of the teaching?

• A. An IUD should be replaced annually during a pelvic exam.
• B. I cannot get an IUD until after I've had a child.
• C. I should plan on regaining fertility 5 months after the IUD is removed.
• D. I will check to ensure the strings of the IUD are still present after my periods.

Correct answer: D

Rationale: Checking for the presence of IUD strings after each period is crucial to ensure the IUD is correctly positioned and functioning. This practice helps in confirming the effectiveness of the contraceptive method and timely detection of any displacement or issues with the IUD. Choice A is incorrect as IUDs have varying durations of effectiveness, but they do not need to be replaced annually as a routine. Choice B is incorrect as women can get an IUD even if they haven't had a child. Choice C is incorrect as fertility typically returns shortly after IUD removal, not necessarily after a specific timeframe like 5 months.

5. A nurse is teaching clients in a prenatal class about the importance of taking folic acid during pregnancy. The nurse should instruct the clients to consume an adequate amount of folic acid from various sources to prevent which of the following fetal abnormalities?

• A. Neural tube defect
• B. Trisomy 21
• C. Cleft lip
• D. Atrial septal defect

Correct answer: A

Rationale: The nurse should educate clients that inadequate folic acid intake is associated with an increased risk of neural tube defects in newborns. Consuming an adequate amount of folic acid from sources like fortified cereals, oranges, artichokes, liver, broccoli, and asparagus can help prevent this serious fetal abnormality. Trisomy 21 (Choice B) is caused by an extra chromosome 21 and is not preventable by folic acid intake. Cleft lip (Choice C) and atrial septal defect (Choice D) are not directly linked to folic acid intake during pregnancy.

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