Nursing Elites

1. Which heart sound is produced by vibrations within the heart chambers or in the major arteries from the back-and-forth flow of blood?

• A. S1 and S2
• B. S3 and S4
• C. Murmur
• D. Physiologic splitting

Correct answer: C

Rationale: A murmur is produced by turbulent blood flow within the heart or major arteries, resulting in audible vibrations.

2. A child diagnosed with aplastic anemia is admitted to the hospital. The parents ask the nurse what aplastic anemia is. Which response by the nurse is accurate?

• A. Aplastic anemia causes a proliferation of white blood cells.
• B. Aplastic anemia is characterized by abnormally shaped red blood cells.
• C. Aplastic anemia is caused by the bone marrow producing inadequate cells.
• D. Aplastic anemia is a disorder that occurs after a viral illness.

Correct answer: C

Rationale: Aplastic anemia is a condition where the bone marrow fails to produce sufficient red blood cells, white blood cells, and platelets, leading to pancytopenia. This can result in fatigue, infections, and bleeding tendencies. It is not characterized by abnormal red blood cell shapes, but rather by a reduction in the production of blood cells. Therefore, the accurate response is that aplastic anemia is caused by the bone marrow producing inadequate cells. Choices A and B are incorrect as aplastic anemia does not cause a proliferation of white blood cells or involve abnormally shaped red blood cells. Choice D is incorrect as aplastic anemia is not typically a disorder that occurs after a viral illness.

3. One of the most critical needs of the infant is control of body temperature. The nurse caring for a newborn warms all equipment that comes in direct contact with the newborn to help prevent which type of heat loss?

• A. Convection
• B. Evaporation
• C. Conduction
• D. Radiation

Correct answer: C

Rationale: The correct answer is Conduction (choice C). Conduction heat loss occurs when the newborn’s skin comes into direct contact with a cooler surface, so warming equipment helps prevent this. Choice A, Convection, is the transfer of heat through air or water currents, not direct contact. Choice B, Evaporation, is the loss of heat through moisture on the skin evaporating, not direct contact. Choice D, Radiation, is the transfer of heat in the form of waves or particles, not direct contact.

4. Which should the nurse teach to parents regarding oral health of children? (Select all that apply.)

• A. Fluoridated water should be used.
• B. Early childhood caries is a preventable disease
• C. All options are correct
• D. Dental hygiene should begin with the first tooth eruption

Correct answer: C

Rationale: Fluoridated water helps prevent caries, early childhood caries is preventable, and dental hygiene should start with the first tooth eruption.

5. What does the American Academy of Pediatrics recommend as the best form of infant nutrition?

• A. Exclusive breastfeeding until 1 year of age
• B. Exclusive breastfeeding until 6 months of age
• C. Commercially prepared infant formula until 1 year of age
• D. Commercially prepared infant formula until 4 to 6 months of age

Correct answer: A

Rationale: The American Academy of Pediatrics advocates for exclusive breastfeeding until 1 year of age as the best form of infant nutrition. Breastfeeding for the first year of life provides optimal nutrition and benefits for the infant. Exclusive breastfeeding until 6 months of age is not in line with the AAP's recommendation for a full year. While commercially prepared infant formula is an alternative if breastfeeding is not possible, it is not the preferred choice according to AAP guidelines. The recommendation for commercial infant formula until 1 year of age is not in line with the AAP's stance on the benefits of extended breastfeeding.

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