Nursing Elites

1. During a well-baby examination, the nurse measures the head circumference, and it is the same as the chest circumference. On the basis of this measurement, what action should the nurse take?

• A. Document these measurements in the infant's health care record.
• B. Tell the mother that the infant is growing faster than expected.
• C. Suggest to the health care provider that a skull x-ray be performed.
• D. Report the presence of hydrocephalus to the health care provider.

Correct answer: A

Rationale: The head circumference growth rate during the first year is approximately 0.4 inches (1 cm) per month. By 10 to 12 months of age, the infant's head and chest circumferences are equal. In this case, where the head circumference matches the chest circumference, it is a normal finding in infants around 10-12 months. Therefore, the most appropriate action is to document these measurements in the infant's health care record. Suspecting hydrocephalus or suggesting a skull x-ray would be premature and not indicated based on this measurement. Similarly, telling the mother that the infant is growing faster than expected is not accurate and could cause unnecessary concern.

2. A client with peripheral artery disease tells the nurse that pain develops in his left calf when he is walking and subsides with rest. The nurse documents that the client is most likely experiencing which disorder?

• A. Venous insufficiency
• B. Intermittent claudication
• C. Sore muscles from overexertion
• D. Muscle cramps related to musculoskeletal problems

Correct answer: B

Rationale: Leg pain characteristic of peripheral artery disease is known as intermittent claudication. The client can walk only a certain distance before cramping, burning, muscle discomfort, or pain forces them to stop, with the pain subsiding after rest. The pain is reproducible, and as the disease progresses, the client can walk shorter distances before the pain recurs. Ultimately, pain may even occur at rest. Venous insufficiency (Choice A) involves impaired blood flow in the veins, leading to swelling and skin changes but not typically pain associated with exercise. Sore muscles from overexertion (Choice C) and muscle cramps related to musculoskeletal problems (Choice D) do not present with the characteristic pattern of pain associated with peripheral artery disease.

3. In conducting a health screening for 12-month-old children, the nurse expects them to have been immunized against which of the following diseases?

• A. measles, polio, pertussis, hepatitis B
• B. diphtheria, pertussis, polio, tetanus
• C. rubella, polio, pertussis, hepatitis A
• D. measles, mumps, rubella, polio

Correct answer: B

Rationale: By 12 months of age, children should have received the DTaP (diphtheria, pertussis, and tetanus) vaccine along with the polio vaccine. The MMR (measles, mumps, and rubella) vaccine is not typically given until the child is 12-15 months old. Therefore, option B is correct as it includes vaccines that are usually administered by 12 months of age. Options A, C, and D are incorrect as they include vaccines that are typically given after 12 months of age.

4. A nurse calculates a newborn infant's Apgar score 1 minute after birth and determines that the score is 6. What is the most appropriate action for the nurse to take?

• A. Initiate cardiopulmonary resuscitation
• B. Gently stimulate the infant by rubbing his back while administering oxygen
• C. Recheck the score in 5 minutes
• D. Provide no action except to support the infant's spontaneous efforts

Correct answer: B

Rationale: The Apgar score is a method for rapidly evaluating an infant's cardiorespiratory adaptation after birth. The nurse assigns scores in five areas: heart rate, respiratory effort, muscle tone, reflex response, and color, totaling the scores. A score of 8 to 10 requires no action other than supporting the infant's spontaneous efforts and observation. A score of 4 to 7 indicates the need to gently stimulate the infant by rubbing his back while administering oxygen. If the score is 1 to 3, the infant requires resuscitation. Therefore, in this scenario with an Apgar score of 6, the correct action is to gently stimulate the infant by rubbing his back while administering oxygen. Initiating cardiopulmonary resuscitation would be excessive at this point, and rechecking the score in 5 minutes may delay necessary interventions. Providing no action except to support the infant's spontaneous efforts is insufficient for a score of 6, indicating the need for stimulation and oxygen administration.

5. The nurse is teaching parents of a newborn about feeding their infant. Which of the following instructions should the nurse include?

• A. Use the defrost setting on microwave ovens to warm bottles.
• B. When refrigerating formula, discard partially used bottles after 24 hours.
• C. When using formula concentrate, mix one part water and one part concentrate.
• D. When using powdered formula, mix two parts water and one part powder.

Correct answer: A

Rationale: The correct answer is to use the defrost setting on microwave ovens to warm bottles. It is essential for parents to be cautious when warming bottles in a microwave oven to prevent superheating of the milk. Choosing the defrost setting and checking the formula temperature before giving it to the baby helps avoid burns. Discarding partially used bottles after 24 hours when refrigerating formula is crucial as it reduces the risk of harmful bacterial growth. Mixing formula concentrate with water in a 1:1 ratio of one part concentrate to one part water ensures proper dilution of the formula. On the other hand, powdered formula should be mixed following the package instructions, typically using two parts water to one part powder. This accurate mixing ratio provides the necessary balance of nutrients for the baby. Adding fresh formula to partially used bottles can introduce pathogens that may harm the infant, underscoring the importance of discarding partially used bottles and preparing formula correctly. Therefore, options B, C, and D are incorrect as they do not address the safe and proper ways to feed a newborn effectively.

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