Nursing Elites

1. A healthcare professional is reviewing the laboratory report of a child with tetralogy of Fallot that indicates an elevated RBC count. What does the professional identify as the cause of the polycythemia?

• A. Low tissue oxygen needs
• B. Tissue oxygen needs
• C. Diminished iron level
• D. Hypertrophic cardiac muscle

Correct answer: B

Rationale: The correct answer is B: Tissue oxygen needs. Polycythemia occurs as the body's response to chronic hypoxia by increasing RBC production to enhance oxygen delivery. In tetralogy of Fallot, a congenital heart defect, the heart's structure causes reduced oxygen levels in the blood. This chronic hypoxia stimulates the bone marrow to produce more red blood cells, leading to an elevated RBC count. Choice A is incorrect as low blood pressure is not directly related to polycythemia in this context. Choice C, diminished iron level, is not the cause of polycythemia in tetralogy of Fallot. Choice D, hypertrophic cardiac muscle, is not the primary cause of the elevated RBC count in this case.

2. What is the most common cause of seizures in children?

• A. An abrupt rise in body temperature
• B. An inflammatory process in the brain
• C. A temperature greater than 102°F
• D. A life-threatening infection

Correct answer: C

Rationale: Seizures in children most often result from a temperature greater than 102°F, known as febrile seizures. Febrile seizures are commonly triggered by a rapid increase in body temperature due to infections or other causes. Choice A is incorrect as febrile seizures are not necessarily caused by the abrupt rise in body temperature alone. Choice B is incorrect as inflammatory processes in the brain may lead to other types of seizures but are not the most common cause in children. Choice D is incorrect as not all seizures in children are due to life-threatening infections.

3. At 7 AM, a healthcare professional receives the information that an adolescent with diabetes has a 6:30 AM fasting blood glucose level of 180 mg/dL. What is the priority nursing action at this time?

• A. Encourage the adolescent to start exercising.
• B. Ask the adolescent to obtain an immediate glucometer reading.
• C. Inform the adolescent that a complex carbohydrate such as cheese should be eaten.
• D. Tell the adolescent that the prescribed dose of rapid-acting insulin should be administered.

Correct answer: D

Rationale: The correct priority nursing action in this situation is to administer the prescribed dose of rapid-acting insulin. Rapid-acting insulin is necessary to help lower the elevated blood glucose level quickly, thereby preventing potential complications of hyperglycemia. Encouraging exercise, obtaining a glucometer reading, or suggesting consumption of complex carbohydrates like cheese may not address the immediate need to bring down the high blood glucose level effectively. Exercise could potentially raise blood glucose levels, obtaining a glucometer reading may delay necessary treatment, and consuming complex carbohydrates can further elevate blood glucose levels in this scenario.

4. What explanation should the nurse give a parent about the purpose of a tetanus toxoid injection for their child?

• A. Passive immunity is conferred temporarily.
• B. Long-lasting active immunity is conferred.
• C. Lifelong active natural immunity is conferred.
• D. Passive natural immunity is conferred temporarily.

Correct answer: B

Rationale: The correct answer is B: Long-lasting active immunity is conferred. Tetanus toxoid injection works by stimulating the child's body to produce its antibodies, providing long-lasting active immunity. Choice A is incorrect because passive immunity is not conferred for life; it is temporary and involves receiving antibodies rather than producing them internally. Choice C is incorrect as the immunity conferred by the tetanus toxoid injection is not lifelong natural immunity but rather active immunity stimulated by the body's immune response. Choice D is also incorrect since passive natural immunity is not conferred by the tetanus toxoid injection, and it is not temporary.

5. A parent tells the nurse, “My 9-month-old baby no longer has the same strong grasp that was present at birth and no longer acts startled by loud noises.” How should the nurse explain these changes in behavior?

• A. “I will check these responses before deciding how to proceed.”
• B. “Failure of these responses may be related to a developmental delay.”
• C. “Additional sensory stimulation is needed to aid in the return of these responses.”
• D. “These responses are replaced by voluntary activity at about five months of age.”

Correct answer: D

Rationale: The correct answer is D: “These responses are replaced by voluntary activity at about five months of age.” The grasp reflex and startle reflex (Moro reflex) are normal in newborns but typically disappear as the infant's nervous system matures and voluntary control develops. Choice A is incorrect because checking the responses before deciding a course of action does not address the developmental milestone related to the reflexes. Choice B is incorrect as it jumps to a conclusion of developmental delay without considering the normal developmental process. Choice C is incorrect as additional sensory stimulation is not necessary for the return of these reflexes, as they are expected to naturally diminish as part of normal development.

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