NCLEX NCLEX-PN
Health Promotion and Maintenance NCLEX PN Questions
1. The LPN is taking care of a 176-pound client who has recently been diagnosed with diabetes. The primary healthcare provider has written an order for Lantus® (insulin glargine injection) 100 units/mL, using weight-based dosing of 0.2 units/kg per day. The LPN should prepare ____ units for administration.
- A. 12
- B. 35
- C. 16
- D. 9
Correct answer: 35
Rationale: To calculate the correct dosage, first convert the client's weight from pounds to kilograms. As 1 kg = 2.2 pounds, 176 pounds ÷ 2.2 = 80 kg. The client should receive 0.2 units for every kilogram, which equals 16 units. Therefore, the total amount to prepare is 16 units x 100 units/mL = 1600 units. Considering the medication concentration of 100 units/mL, 1600 units ÷ 100 units/mL = 16 mL. However, since the question asks for the number of units, the final answer is 16 units x 2 injections = 32 units. Therefore, the LPN should prepare 32 units for administration.
2. A nurse, assigned to care for a hospitalized child who is 8 years old, assists with planning care, taking into account Erik Erikson’s theory of psychosocial development. According to Erikson’s theory, which task represents the primary developmental task of this child?
- A. Developing a sense of control over self and body functions
- B. Mastering useful skills and tools
- C. Gaining independence from parents
- D. Developing a sense of trust in the world
Correct answer: Mastering useful skills and tools
Rationale: According to Erikson's theory of psychosocial development, the primary task for an 8-year-old child aligns with the stage of industry versus inferiority. This stage focuses on mastering useful skills and tools of the culture, emphasizing competence in various areas. Option A, 'Developing a sense of control over self and body functions,' is more characteristic of the toddler stage, emphasizing autonomy and self-regulation. Option C, 'Gaining independence from parents,' is more relevant to the adolescent stage, where identity development and autonomy become crucial. Option D, 'Developing a sense of trust in the world,' pertains to the infant stage, highlighting the importance of forming secure attachments. Therefore, the correct answer is B as it directly corresponds to the developmental tasks associated with an 8-year-old child according to Erikson's theory.
3. Which physiologic mechanism best describes the function of the sodium-potassium pump?
- A. active transport
- B. diffusion
- C. filtration
- D. osmosis
Correct answer: active transport
Rationale: Active transport is the correct answer as it accurately describes the process involved in the sodium-potassium pump. The pump utilizes energy to move ions against their concentration gradient, maintaining cellular concentrations. Diffusion (choice B) is a passive process where substances move from an area of higher concentration to lower concentration. Filtration (choice C) involves the movement of solutes based on pressure gradients. Osmosis (choice D) is the movement of water across a semipermeable membrane.
4. The new mother asks why her baby has lost weight since he was born. The best explanation of the weight loss is:
- A. The baby is dehydrated due to polyuria.
- B. The baby is hypoglycemic due to lack of glucose.
- C. The baby is allergic to the formula the mother is giving him.
- D. The baby can lose up to 10% of weight due to meconium stool, loss of extracellular fluid, and initiation of breastfeeding.
Correct answer: The baby can lose up to 10% of weight due to meconium stool, loss of extracellular fluid, and initiation of breastfeeding.
Rationale: After birth, newborns can lose weight due to meconium stool, loss of extracellular fluid, and the initiation of breastfeeding. This weight loss is a normal and expected physiological process, and infants can lose up to 10% of their birth weight during this period. There is no indication of dehydration (polyuria), hypoglycemia (lack of glucose), or allergy to the formula as reasons for weight loss in newborns. Therefore, answers A, B, and C are incorrect. Answer D provides the most accurate explanation for the observed weight loss in the newborn.
5. A nurse is determining the fetal heart rate (FHR) and places the fetoscope on the mother’s abdomen to count the FHR. The nurse simultaneously palpates the mother’s radial pulse and notes that it is synchronized with the sounds heard through the fetoscope. Which action should the nurse take?
- A. Count the FHR for 60 seconds, ensuring that it is synchronized consistently with the mother's radial pulse.
- B. Move the fetoscope to another area on the mother's abdomen to locate the fetal heart.
- C. Ask the mother to lie still while both the FHR and the radial pulse rate are counted.
- D. Count the FHR for 30 seconds and then count the radial pulse rate of the mother for 30 seconds.
Correct answer: Move the fetoscope to another area on the mother's abdomen to locate the fetal heart.
Rationale: When auscultating the fetal heart rate, the nurse would place the fetoscope on the maternal abdomen, over the fetal back. The nurse would then palpate the mother’s radial pulse. If her pulse is synchronized with the sounds from the fetoscope, the nurse would move the fetoscope to another area on the mother’s abdomen to locate the FHR. The nurse needs to be sure that the FHR is what is actually being heard. Other sounds that may be heard are the funic sound (blood flowing through the umbilical cord) and the uterine sound (blood flowing through the uterine vessels). The funic sound is synchronized with the FHR; the uterine sound is synchronized with the mother’s pulse. Therefore, moving the fetoscope to a different area will help in accurately locating and counting the fetal heart rate. Choice A is incorrect because counting for 60 seconds without changing the position may not address the issue of accurately locating the FHR. Choice C is incorrect as it does not address the need to reposition the fetoscope to locate the fetal heart. Choice D is incorrect because counting the FHR and the radial pulse rate separately may not help in differentiating the two sounds.
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