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. When preparing to administer an IM injection that is irritating to the subcutaneous tissue, what is the best action to prevent tracking of the medication?

• A. Use a small gauge needle
• B. Apply ice on the injection site
• C. Administer at a 45° angle
• D. Use the Z-track technique

Correct answer: D

Rationale: The Z-track technique is the best action to prevent tracking of the medication when administering an IM injection that is irritating to the subcutaneous tissue. This technique involves pulling the skin to the side before administering the injection and then releasing the skin after the injection. By doing so, a zig-zag pathway is created, preventing the medication from leaking into the subcutaneous tissue and reducing irritation. Options A, B, and C are incorrect. Using a small gauge needle may not prevent tracking of the medication. Applying ice on the injection site or administering at a 45° angle does not specifically address preventing tracking of the medication in cases where the injection is irritating to the subcutaneous tissue.

3. A client is experiencing preterm contractions and dehydration. Which of the following statements should the nurse make?

• A. Dehydration is treated with calcium supplements.
• B. Dehydration can increase the risk of preterm labor.
• C. Dehydration is associated with gastroesophageal reflux.
• D. Dehydration is caused by decreased hemoglobin and hematocrit.

Correct answer: B

Rationale: Dehydration can lead to an imbalance in electrolytes and cause uterine irritability, potentially leading to preterm contractions. It is essential for the nurse to educate the client on the importance of adequate hydration to reduce the risk of preterm labor. The statement 'Dehydration can increase the risk of preterm labor' directly addresses the client's condition and provides relevant information for their understanding and management of the situation.

4. During an assessment, a healthcare provider observes a client with a chest tube and drainage system. What is an expected finding?

• A. Continuous bubbling in the water seal chamber
• B. Gentle constant bubbling in the suction control chamber
• C. Drainage system positioned upright at chest level
• D. Exposed sutures without dressing

Correct answer: B

Rationale: When assessing a client with a chest tube and drainage system, gentle constant bubbling in the suction control chamber is an expected finding. This indicates that the system is functioning properly. Continuous bubbling in the water seal chamber would suggest an air leak, the drainage system should be positioned upright at chest level to promote proper drainage, and exposed sutures without dressing would be an incorrect finding as they should be covered to prevent infection.

5. A client has a new diagnosis of tuberculosis and has been placed on a multi-medication regimen. Which of the following instructions should the nurse give the client related to ethambutol?

• A. Your urine can turn a dark orange.
• B. Watch for a change in the sclera of your eyes.
• C. Watch for any changes in vision.
• D. Take vitamin B6 daily.

Correct answer: C

Rationale: Ethambutol is associated with potential vision changes, including optic neuritis. Patients should be instructed to report any visual disturbances immediately to prevent permanent vision loss. Monitoring for changes in vision is crucial to detect any adverse effects early on and prevent serious complications.

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