Nursing Elites

1. This is a more accurate indicator of tissue perfusion. It represents the cardiac output in terms of liters per minute per square meter of body surface area. Its normal range is 2.4-4 L/min.

• A. Cardiac Index
• B. Stroke volume
• C. Ejection fraction
• D. Cardiac output

Correct answer: A

Rationale: The correct answer is A: Cardiac Index. Cardiac Index is a measure of cardiac output relative to body surface area, providing a more accurate assessment of tissue perfusion. It is calculated by dividing the cardiac output by the body surface area. The normal range for cardiac index is 2.4-4 L/min/m². Choice B, Stroke volume, refers to the amount of blood ejected by the heart in one contraction and is not adjusted for body surface area. Choice C, Ejection fraction, is the percentage of blood pumped out of the heart's ventricles with each contraction, not adjusted for body surface area. Choice D, Cardiac output, is the total volume of blood pumped by the heart per minute, without considering body surface area.

2. The nurse is caring for a client on heparin. What is the most important lab value to monitor?

• A. aPTT
• B. INR
• C. Platelet count
• D. Hemoglobin

Correct answer: A

Rationale: The correct answer is A: aPTT. When a client is on heparin therapy, monitoring the aPTT is crucial. The aPTT helps assess the effectiveness of heparin in preventing blood clots and guides dose adjustments as needed. INR (Choice B) is more commonly used to monitor warfarin therapy. Platelet count (Choice C) is important to assess for potential bleeding disorders or thrombocytopenia but is not the primary lab value to monitor for heparin therapy. Hemoglobin (Choice D) is essential for assessing oxygen-carrying capacity but is not the most important lab value to monitor when a client is on heparin.

3. The healthcare provider is monitoring a client on an ACE inhibitor. What lab value is most important to monitor?

• A. Potassium
• B. Sodium
• C. Creatinine
• D. Calcium

Correct answer: A

Rationale: The correct answer is A: Potassium. When a client is on an ACE inhibitor, it is crucial to monitor potassium levels because ACE inhibitors can lead to an increase in potassium, potentially causing hyperkalemia. Monitoring sodium levels (Choice B) is not as critical in this scenario. Creatinine levels (Choice C) are important for assessing kidney function but are not the most crucial lab value to monitor with ACE inhibitors. Calcium levels (Choice D) are not directly affected by ACE inhibitors and are not the priority for monitoring in this case.

4. Which surgical procedure involves removing a portion of the lung?

• A. Lobectomy
• B. Pneumonectomy
• C. Tracheostomy
• D. Bronchoscopy

Correct answer: A

Rationale: A lobectomy is the surgical removal of a lobe of the lung. This procedure is commonly performed to treat conditions like lung cancer or severe lung diseases. Pneumonectomy involves removing an entire lung, making it incorrect. Tracheostomy is a surgical procedure to create an opening in the windpipe, not involving lung tissue removal. Bronchoscopy is a diagnostic procedure that allows visualization of the airways using a thin, flexible tube with a camera, not involving lung tissue removal.

5. What is a chronic condition where the blood pressure in the arteries is persistently elevated, increasing the risk of heart disease and stroke?

• A. Hypertension
• B. Hypotension
• C. Hyperlipidemia
• D. Hyperglycemia

Correct answer: A

Rationale: Hypertension, also known as high blood pressure, is a chronic condition characterized by persistently elevated pressure in the arteries. This condition increases the risk of heart disease, stroke, and other health issues. Hypotension (choice B) refers to low blood pressure and is not the correct answer. Hyperlipidemia (choice C) is high levels of fats in the blood, not related to blood pressure. Hyperglycemia (choice D) is high blood sugar levels, not directly related to elevated blood pressure.

Similar Questions