Nursing Elites

1. The cognitive impairment is classified into four levels based on the intelligence quotient (IQ). How is a child with an IQ of 45 classified?

• A. Within the normal low range
• B. Educable
• C. Trainable
• D. Severe

Correct answer: C

Rationale: A child with an IQ of 45 is classified as 'Trainable' in the context of cognitive impairment levels. This category is determined by an IQ range of 35 to 55. Choice A ('Within the normal low range') is incorrect as an IQ of 45 falls within the range associated with the 'Trainable' level, not the 'Normal low range.' Choice B ('Educable') is incorrect because this classification typically corresponds to individuals with slightly higher IQs that allow for academic progress with support. Choice D ('Severe') is incorrect as it does not align with the IQ level of 45, which falls within the 'Trainable' category.

2. A client with hyperkalemia is being treated in the emergency department. Which medication should the nurse prepare to administer?

• A. Potassium chloride
• B. Calcium gluconate
• C. Magnesium sulfate
• D. Sodium bicarbonate

Correct answer: B

Rationale: The correct answer is B, Calcium gluconate. In hyperkalemia, where potassium levels are elevated, calcium gluconate is administered to stabilize the myocardial cell membrane and protect the heart from potential arrhythmias. Potassium chloride (choice A) would worsen the condition by further increasing potassium levels. Magnesium sulfate (choice C) is not the primary treatment for hyperkalemia. Sodium bicarbonate (choice D) is used in metabolic acidosis, not specifically for hyperkalemia.

3. A 2-year-old child with laryngotracheobronchitis (LTB) is fussy and restless in the oxygen tent. The oxygen level in the tent is 25%, and blood gases are normal. What would be the correct action by the nurse?

• A. Restrain the child in the tent and notify the health care provider.
• B. Increase the oxygen concentration in the tent.
• C. Take the child out of the tent and into the playroom.
• D. Ask the mother for help in comforting the child.

Correct answer: B

Rationale: The child with LTB should be placed in the mist tent with 30% oxygen. Restlessness is caused by poor oxygenation. The child should not be taken out of the oxygenated tent. While the mother could be asked to help comfort the child, and the health care provider may be notified, the priority is to set the oxygen at the correct level.

4. While walking to the mailbox, an older adult male experiences sudden chest tightness and drives himself to the emergency department. When the client gets up to the desk of the triage nurse, he says his heart is pounding out of his chest as he clutches his chest and falls to the floor. Which intervention should the nurse implement first?

• A. Prepare for cardiac defibrillation.
• B. Apply cardiac monitor leads.
• C. Obtain troponin serum levels.
• D. Palpate the client’s artery.

Correct answer: D

Rationale: Palpating the client's artery is the priority intervention in this scenario because it helps determine if there is a pulse, which is crucial information in emergency situations like this. If the client is pulseless, immediate initiation of CPR is necessary. Applying cardiac monitor leads or obtaining troponin serum levels can wait until the presence of a pulse is confirmed. Cardiac defibrillation is not indicated without first assessing the client's pulse and cardiac rhythm.

5. A client who is experiencing respiratory distress is admitted with respiratory acidosis. Which pathophysiological process supports the client’s respiratory acidosis?

• A. Low oxygen levels are present in the blood.
• B. High levels of carbon dioxide have accumulated in the blood.
• C. Increased bicarbonate levels are causing alkalosis.
• D. Respiratory rate is increased, causing hyperventilation.

Correct answer: B

Rationale: High levels of carbon dioxide in the blood lead to respiratory acidosis due to inadequate ventilation. The correct answer is B. In respiratory acidosis, the accumulation of carbon dioxide in the blood occurs due to inadequate exhalation, leading to acidosis. Choice A is incorrect as low oxygen levels are related to hypoxemia, not respiratory acidosis. Choice C is incorrect as increased bicarbonate levels would lead to alkalosis, not acidosis. Choice D is incorrect as an increased respiratory rate causing hyperventilation would actually help decrease carbon dioxide levels, not lead to respiratory acidosis.

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