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. Which of the following parameters should be checked when assessing respirations?

• A. Rate
• B. Rhythm
• C. Symmetry
• D. All of the above

Correct answer: D

Rationale: When assessing respirations, it is essential to evaluate the rate at which breaths are taken, the rhythm of breathing patterns, and the symmetry of chest expansion. Each of these parameters provides valuable information about a person's respiratory status. Therefore, it is important to assess all of the listed parameters to have a comprehensive understanding of the individual's respiratory function.

3. What is the primary purpose of a platelet count?

• A. Assessing clot formation potential
• B. Assessing bleeding risk
• C. Detecting antigen-antibody response
• D. Identifying cardiac enzymes presence

Correct answer: B

Rationale: A platelet count is primarily used to assess the risk of bleeding. Platelets play a crucial role in blood clotting, so a low platelet count can lead to an increased risk of bleeding. Monitoring platelet levels helps healthcare providers evaluate a patient's ability to form clots and manage bleeding.

4. A client has diaper dermatitis. Which of the following actions should the nurse take?

• A. Apply zinc oxide ointment to the irritated area.
• B. Wipe stool from the skin using store-bought baby wipes.
• C. Apply talcum powder to the irritated area.
• D. None of the above

Correct answer: A

Rationale: Diaper dermatitis, also known as diaper rash, is a common condition in babies or clients who wear diapers. The primary intervention for diaper dermatitis is to apply a protective barrier cream, such as zinc oxide ointment, to the irritated area. This helps to protect the skin from irritants and promotes healing. Wiping stool from the skin using baby wipes may further irritate the skin, and talcum powder is no longer recommended due to potential respiratory risks when inhaled. Therefore, the correct action for the nurse in this scenario is to apply zinc oxide ointment to the irritated area.

5. Why is a precise amount of oxygen necessary for a patient with COPD to prevent which complication?

• A. Cardiac arrest related to increased partial pressure of carbon dioxide in arterial blood (PaCO2)
• B. Circulatory overload due to hypervolemia
• C. Respiratory excitement
• D. Inhibition of the respiratory hypoxic stimulus

Correct answer: D

Rationale: In patients with COPD, the respiratory drive is often stimulated by low oxygen levels. Administering too much oxygen can inhibit this hypoxic drive, leading to respiratory depression and potential respiratory failure. Therefore, it is crucial to carefully regulate the oxygen therapy to prevent the inhibition of the respiratory hypoxic stimulus in COPD patients.

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