NCLEX-PN
NCLEX PN Exam Cram
1. Which of the following statements should the nurse use to best describe a very low-calorie diet (VLCD) to a client?
- A. “This diet can be used when there is close medical supervision.”
- B. “This is a long-term treatment measure that assists obese people who can’t lose weight.”
- C. “The VLCD consists of solid food items that are pureed to facilitate digestion and absorption.”
- D. “A VLCD contains very little protein.”
Correct answer: “This diet can be used when there is close medical supervision.”
Rationale: The correct answer is, “This diet can be used when there is close medical supervision.” Very low-calorie diets (VLCDs) are used in the clinical treatment of obesity under close medical supervision. The diet is low in calories, high in quality protein, and has a minimum of carbohydrates to spare protein and prevent ketosis. Choice B is incorrect because VLCDs are typically short-term interventions. Choice C is incorrect because VLCDs usually consist of nutritionally complete liquid formulations, not solid food items that are pureed. Choice D is incorrect because VLCDs actually contain a high quality of protein, although the overall caloric content is very low.
2. Which hormone is responsible for amenorrhea in the pregnant woman?
- A. Progesterone
- B. Estrogen
- C. Follicle-stimulating hormone (FSH)
- D. Human chorionic gonadotropin (hCG)
Correct answer: Progesterone
Rationale: Correct! Progesterone is the hormone responsible for amenorrhea in pregnant women. Progesterone plays a crucial role in maintaining the uterine lining for implantation and supporting early pregnancy. High levels of progesterone during pregnancy suppress the normal menstrual cycle, leading to amenorrhea. Estrogen, FSH, and hCG do not directly cause amenorrhea in pregnant women. Estrogen is involved in the development of female secondary sexual characteristics, FSH is involved in the growth and maturation of ovarian follicles, and hCG is produced by the placenta to support the production of progesterone during pregnancy.
3. The PN is caring for a client with diabetes insipidus. The nurse can expect the lab work to show:
- A. elevated urine osmolarity and elevated serum osmolarity.
- B. decreased urine osmolarity and decreased serum osmolarity.
- C. elevated urine osmolarity and decreased serum osmolarity.
- D. decreased urine osmolarity and elevated serum osmolarity.
Correct answer: decreased urine osmolarity and elevated serum osmolarity.
Rationale: In diabetes insipidus, the pituitary releases too much antidiuretic hormone (ADH), causing the client to produce a large amount of dilute urine (decreased osmolarity) and leading to dehydration (elevated serum osmolarity). Therefore, the correct answer is decreased urine osmolarity and elevated serum osmolarity. Choice C, elevated urine osmolarity and decreased serum osmolarity, is incorrect for diabetes insipidus, as it is more characteristic of syndrome of inappropriate ADH (SIADH). Choices A and B, elevated urine osmolarity and elevated serum osmolarity, and decreased urine osmolarity and decreased serum osmolarity, respectively, are generally not seen in diabetes insipidus, as urine and serum osmolarity typically move in opposite directions in this condition.
4. Which of the following observations is most important when assessing a client’s breathing?
- A. presence of breathing and pulse rate
- B. breathing pattern and adequacy of breathing
- C. presence of breathing and adequacy of breathing
- D. patient position and adequacy of breathing
Correct answer: presence of breathing and adequacy of breathing
Rationale: The correct answer is the presence of breathing and adequacy of breathing. It is crucial to ensure that the client is not only breathing but also breathing adequately. Choices A and D are incorrect as pulse rate and patient position are not the most critical observations when assessing a client's breathing. Pulse rate is more related to assessing circulation, and patient position is important but not as crucial as ensuring the client is breathing and breathing adequately. Choice B is partially correct as breathing pattern is important, but the most critical observation is the adequacy of breathing. Adequacy of breathing ensures that the client is receiving enough oxygen to support proper body function and is the key focus during breathing assessment.
5. After experiencing a left frontal lobe CVA, a fifty-five-year-old man is being monitored by a nurse. The patient’s family is not present in the room. What should the nurse observe most closely for?
- A. Changes in emotion and behavior
- B. Monitor loss of hearing
- C. Observe appetite and vision deficits
- D. Changes in facial muscle control
Correct answer: Changes in emotion and behavior
Rationale: The correct answer is to watch for changes in emotion and behavior. The frontal lobe, particularly the left side, is responsible for regulating behavior and emotions. Therefore, following a left frontal lobe CVA, monitoring for alterations in emotion and behavior is crucial. Choices B, C, and D are incorrect because loss of hearing, appetite and vision deficits, and changes in facial muscle control are not directly associated with a left frontal lobe CVA.
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