Nursing Elites

1. What is a surgical procedure to create an opening in the windpipe to assist with breathing?

• A. Tracheostomy
• B. Lobectomy
• C. Thoracotomy
• D. Pleurodesis

Correct answer: A

Rationale: Tracheostomy is the correct answer. It is a surgical procedure to create an opening in the windpipe (trachea) to assist with breathing. This procedure is commonly used for patients who require long-term ventilation support. Choice B, Lobectomy, involves the removal of a lobe of the lung and is not related to creating an opening in the windpipe. Choice C, Thoracotomy, is a surgical incision into the chest wall and is not specifically related to creating an opening in the windpipe. Choice D, Pleurodesis, is a procedure to treat recurrent pleural effusions by causing the pleural layers to stick together, and it is not related to creating an opening in the windpipe.

2. What procedure involves using a catheter to create a small scar in the heart tissue to block abnormal electrical signals and restore normal heart rhythm?

• A. Catheter ablation
• B. Angioplasty
• C. Stent placement
• D. Valve replacement

Correct answer: A

Rationale: Catheter ablation is the correct answer. During catheter ablation, a catheter is used to create a small scar in the heart tissue to block abnormal electrical signals, thereby restoring a normal heart rhythm. Choices B, C, and D are incorrect because angioplasty is a procedure to widen narrowed or obstructed arteries, stent placement involves inserting a mesh tube to support a weak artery, and valve replacement is the surgical procedure of replacing a heart valve, none of which match the description provided in the question.

3. Which surgical procedure involves opening or replacing a narrowed or blocked heart valve?

• A. Valve replacement
• B. Angioplasty
• C. Stent placement
• D. Coronary bypass surgery

Correct answer: A

Rationale: Valve replacement is the correct answer because it specifically involves surgically replacing a damaged or diseased heart valve with a prosthetic valve to address narrowing or blockage, thereby improving blood flow and heart function. Angioplasty (choice B) is a procedure to widen narrowed or obstructed arteries, typically using a balloon catheter. Stent placement (choice C) involves inserting a mesh tube to support a weakened artery. Coronary bypass surgery (choice D) is a procedure to create new routes for blood flow to the heart muscle by bypassing blocked arteries.

4. What is the ability of cardiac cells to generate an electrical impulse without being stimulated by an external source?

• A. Automaticity
• B. Contractility
• C. Conductivity
• D. Refractoriness

Correct answer: A

Rationale: Automaticity is the correct answer because it refers to the inherent ability of cardiac cells to generate electrical impulses without the need for external stimulation. Contractility (Choice B) is the ability of the heart muscle to contract and generate force, not related to electrical impulse generation. Conductivity (Choice C) refers to the ability of cardiac cells to transmit electrical impulses from cell to cell, not the spontaneous generation of impulses. Refractoriness (Choice D) is the period during which the cardiac cells are recovering and not able to respond to a new stimulus, not the spontaneous generation of impulses.

5. The client is on enoxaparin (Lovenox) for DVT prophylaxis. What is the most important lab value to monitor?

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

Correct answer: A

Rationale: The correct answer is A: Platelet count. When a client is on enoxaparin (Lovenox), monitoring the platelet count is crucial as enoxaparin can lead to a rare but serious side effect known as heparin-induced thrombocytopenia (HIT), causing a decrease in platelet count. Monitoring the platelet count helps detect this adverse reaction early. Choices B, C, and D are incorrect because enoxaparin therapy does not directly affect PT/INR, aPTT, or hemoglobin levels.

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