Nursing Elites

1. When teaching a class about trisomy 21, the instructor would identify the cause of this disorder as:

• A. nondisjunction.
• B. X-linked recessive inheritance.
• C. genomic imprinting.
• D. autosomal dominant inheritance.

Correct answer: A

Rationale: The correct answer is A: nondisjunction. Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division leading to an extra copy of chromosome 21. This additional genetic material alters the course of development and causes the characteristics associated with Down syndrome. Choices B, C, and D are incorrect. X-linked recessive inheritance refers to genetic disorders carried on the X chromosome, genomic imprinting involves gene expression based on parental origin, and autosomal dominant inheritance relates to disorders caused by a dominant gene on one of the non-sex chromosomes. In the case of trisomy 21, the cause is specifically related to the error in chromosome division, making nondisjunction the most appropriate answer.

2. What is an essential nursing action when caring for a young child with severe diarrhea?

• A. Maintain the IV.
• B. Take daily weights.
• C. Replace the lost calories.
• D. Promote perianal skin integrity.

Correct answer: D

Rationale: Promoting perianal skin integrity is crucial when caring for a young child with severe diarrhea as it helps prevent skin breakdown from the irritation caused by frequent stooling. Maintaining the IV (Choice A) may be necessary but is not directly related to managing perianal skin integrity. Taking daily weights (Choice B) is important for monitoring fluid status but not the priority when addressing perianal skin integrity. While replacing lost calories (Choice C) is essential, promoting perianal skin integrity takes precedence in preventing complications associated with skin breakdown.

3. At 0345, you receive a call for a woman in labor. Upon arriving at the scene, you are greeted by a very anxious man who tells you that his wife is having her baby 'now.' This man escorts you into the living room where a 25-year-old woman is lying on the couch in obvious pain. After determining that delivery is not imminent, you begin transport. While en route, the mother tells you that she feels the urge to push. You assess her and see the top of the baby's head bulging from the vagina. What is your most appropriate first action?

• A. allow the head to deliver and check for the location of the cord
• B. advise your partner to stop the ambulance and assist with the delivery
• C. tell the mother to take short, quick breaths until you arrive at the hospital
• D. prepare the mother for an emergency delivery and open the obstetrics kit

Correct answer: B

Rationale: The correct action in this scenario is to advise your partner to stop the ambulance and assist with the delivery. When the mother feels the urge to push and you see the baby's head bulging from the vagina, it indicates an imminent delivery. Stopping the ambulance allows for a safer environment for the delivery of the baby and ensures that immediate assistance can be provided to both the mother and the newborn. Allowing the head to deliver before checking for the cord (Choice A) may delay necessary interventions in case of complications. Instructing the mother to take short, quick breaths (Choice C) is not appropriate when the baby's head is already visible. Preparing for an emergency delivery and opening the obstetrics kit (Choice D) is important but should come after stopping the ambulance and assisting with the imminent birth.

4. Which of the following statements regarding 2-rescuer child CPR is correct?

• A. The chest should not be allowed to fully recoil in between compressions as this may impede venous return.
• B. Compress the chest with one or two hands to a depth equal to one-half to one third the diameter of the chest.
• C. The chest should be compressed with one hand and a compression to ventilation ratio of 30:2 should be delivered.
• D. A compression to ventilation ratio of 15:2 should be delivered without pauses in compressions to deliver ventilations.

Correct answer: B

Rationale: The correct statement regarding 2-rescuer child CPR is to compress the chest with one or two hands to a depth equal to one-half to one third the diameter of the chest. This technique ensures effective chest compressions without causing excessive damage to the chest. Choice A is incorrect because allowing the chest to fully recoil between compressions is essential to facilitate optimal blood flow during CPR. Choice C is incorrect as it describes a compression to ventilation ratio of 30:2, which is not the recommended ratio for child CPR. Choice D is incorrect as a compression to ventilation ratio of 15:2 is not standard practice for child CPR, and pauses in compressions are necessary to provide ventilations effectively.

5. At 0345, you receive a call for a woman in labor. Upon arriving at the scene, you are greeted by a very anxious man who tells you that his wife is having her baby 'now.' This man escorts you into the living room where a 25-year-old woman is lying on the couch in obvious pain. Which of the following statements regarding crowning is true?

• A. Crowning represents the end of the second stage of labor.
• B. Crowning always occurs immediately after the amniotic sac has ruptured.
• C. It is safe to transport the patient during crowning if the hospital is close.
• D. Gentle pressure should be applied to the baby's head during crowning.

Correct answer: D

Rationale: During crowning, it is essential to apply gentle pressure to the baby's head to prevent rapid delivery, which can lead to potential injuries to both the mother and the baby. Choice A is incorrect because crowning signifies the beginning, not the end, of the second stage of labor. Choice B is incorrect as crowning can occur before or after the amniotic sac ruptures. Choice C is incorrect as transporting the patient during crowning, even if the hospital is close, can be unsafe due to the risk of rapid delivery and complications.

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