Nursing Elites

1. A middle-aged man who has a 35-year smoking history presents to the emergency department confused and short of breath. Before starting oxygen, these baseline arterial blood gases (ABGs) are obtained: pH=7.25, pCO2=50 mmHg, HCO3=30 mEq/L. These findings indicate to the nurse that the client is experiencing which acid-base imbalance?

• A. Metabolic acidosis.
• B. Respiratory acidosis.
• C. Metabolic alkalosis.
• D. Respiratory alkalosis.

Correct answer: B

Rationale: The ABG results show a low pH (acidosis) and increased pCO2, indicating respiratory acidosis. In respiratory acidosis, the lungs cannot remove enough CO2, leading to its accumulation in the blood. This often occurs in conditions like COPD and is consistent with the patient's smoking history. Metabolic acidosis (choice A) is characterized by low pH and low HCO3 levels. Metabolic alkalosis (choice C) is marked by high pH and high HCO3 levels. Respiratory alkalosis (choice D) presents with high pH and low pCO2.

2. 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.

3. The parents of a child who has been diagnosed with sickle cell anemia ask why their child experiences pain. What is the most likely cause of the pain?

• A. Inflammation of the vessels
• B. Obstructed blood flow
• C. Overhydration
• D. Stress-related headaches

Correct answer: B

Rationale: The correct answer is B: Obstructed blood flow. In sickle cell anemia, the sickle-shaped red blood cells can clump together, obstructing blood flow in the vessels. This obstruction leads to tissue hypoxia (lack of oxygen) and necrosis, causing pain. Choice A, inflammation of the vessels, is not the primary cause of pain in sickle cell anemia. Choice C, overhydration, is unrelated to the pathophysiology of sickle cell anemia. Choice D, stress-related headaches, is not a characteristic symptom of sickle cell anemia.

4. What is the hallmark sign of intussusception?

• A. Mucus-like stools
• B. Currant jelly-like stools
• C. Tarry, black stools
• D. Green, soft stools

Correct answer: B

Rationale: The hallmark sign of intussusception is currant jelly-like stools, which result from the mixture of blood and mucus in the stool due to the sloughing of intestinal mucosa. Mucus-like stools (Choice A) are not typically associated with intussusception. Tarry, black stools (Choice C) are characteristic of gastrointestinal bleeding higher up in the gastrointestinal tract, such as from a peptic ulcer. Green, soft stools (Choice D) are more indicative of rapid transit through the intestines, possibly due to dietary factors or infections such as gastroenteritis.

5. An older client is receiving an IV of 5% dextrose in 0.45% normal saline at 75 mL/hour. Which assessment finding indicates to the nurse that the client is developing a complication from this therapy?

• A. Capillary refill takes > 3 seconds.
• B. Episodes of vertigo and loss of balance.
• C. Average daily output of 1200 ml.
• D. Pulse rate of 110 beats/minute and dyspnea upon exertion.

Correct answer: D

Rationale: The correct answer is D. Tachycardia and dyspnea are signs of fluid overload, which is a potential complication of IV fluid therapy. Choices A, B, and C are not directly related to fluid overload and are not typical signs of complications associated with the IV fluid therapy being administered.

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