Nursing Elites

1. In which of the following organs does the exchange of gases take place?

• A. Kidneys
• B. Lungs
• C. Liver
• D. Heart

Correct answer: B

Rationale: The exchange of gases, specifically oxygen and carbon dioxide, occurs in the lungs. In the lungs, oxygen from the air we breathe enters the bloodstream, while carbon dioxide is removed from the bloodstream and exhaled. This process is essential for respiration and supplying the body with oxygen for energy production. The kidneys filter waste from the blood to produce urine and regulate fluid balance (Choice A). The liver is involved in detoxification, protein synthesis, and producing bile (Choice C). The heart is responsible for pumping blood throughout the body to deliver oxygen and nutrients (Choice D).

2. A healthcare professional is reviewing ABG laboratory results of a client who is in respiratory distress. The results are pH 7.47, PaCO2 32 mm Hg, and HCO3 22 mm Hg. The healthcare professional should recognize that the client is experiencing which of the following acid-base imbalances?

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

Correct answer: B

Rationale: The ABG results show a high pH (alkalosis) along with low PaCO2 and normal HCO3 levels, indicating respiratory alkalosis. In this condition, there is excessive loss of carbon dioxide (as seen by the low PaCO2) leading to a decrease in carbonic acid concentration and subsequent increase in pH. Metabolic acidosis or alkalosis would involve primary changes in bicarbonate levels, which are not predominant in this case.

3. A client has unilateral paralysis and dysphagia following a right hemispheric stroke. Which of the following interventions should the nurse include in the plan?

• A. Place the client's left arm on a pillow while he is sitting.
• B. Provide total care in assisting with the client's ADLs.
• C. Encourage mobility and avoid bed rest.
• D. Facilitate feeding by placing food on the left side of the client's mouth when ready to eat.

Correct answer: A

Rationale: Placing the client's left arm on a pillow while sitting helps prevent shoulder displacement and assists in maintaining proper positioning and alignment. This intervention is crucial to prevent complications associated with immobility. Providing total care in ADLs may hinder the client's independence and recovery. Encouraging mobility is essential in preventing complications of immobility. Facilitating feeding by placing food on the unaffected side of the mouth helps reduce the risk of aspiration in clients with dysphagia.

4. A client has generalized petechiae and ecchymoses. The nurse should expect a prescription for which of the following laboratory tests?

• A. Platelet count
• B. Potassium level
• C. Creatinine clearance
• D. Prealbumin

Correct answer: A

Rationale: Generalized petechiae and ecchymoses can indicate a potential issue with platelet function or count. Therefore, the most relevant laboratory test to evaluate this condition would be a platelet count. Platelet count helps assess the number of platelets in the blood, which are crucial for clotting and preventing bleeding. Monitoring platelet levels can provide important information about a client's bleeding risk and overall hematologic health.

5. A client is recovering from an acute myocardial infarction that occurred 3 days ago. Which of the following instructions should the nurse include in the care plan?

• A. Perform an ECG every 12 hours.
• B. Place the client in a supine position while resting.
• C. Draw a troponin level every 4 hours.
• D. Obtain a cardiac rehabilitation consultation.

Correct answer: D

Rationale: After an acute myocardial infarction, cardiac rehabilitation is crucial for the client's recovery. It helps improve the client's overall cardiovascular health, reduces the risk of future cardiac events, and promotes a healthy lifestyle. The other options do not directly address the importance of cardiac rehabilitation in the client's recovery process.

Similar Questions