following mitral valve replacement surgery a client develops pvcs the health care provider orders a bolus of lidocaine followed by a continuous lidoc following mitral valve replacement surgery a client develops pvcs the health care provider orders a bolus of lidocaine followed by a continuous lidoc
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NCLEX RN Practice Questions Exam Cram

1. Following mitral valve replacement surgery, a client develops PVCs. The healthcare provider orders a bolus of Lidocaine followed by a continuous Lidocaine infusion at a rate of 2 mg/minute. The IV solution contains 2 grams of Lidocaine in 500 mL of D5W. The infusion pump delivers 60 microdrops/mL. What rate would deliver 4 mg of Lidocaine per minute?

Correct answer: 60 microdrops/minute

Rationale: To calculate the rate needed to deliver 4 mg/minute of Lidocaine, first, convert 2 grams to milligrams: 2 grams = 2000 mg. Then, set up a ratio between the total amount of Lidocaine (2000 mg) and the total volume of IV solution (500 mL): 2000 mg / 500 mL = 4 mg / x mL. Solving for x, x = 1 mL. Since the infusion pump delivers 60 microdrops per mL, multiplying by 60 microdrops/mL gives the correct rate of 60 microdrops/minute. This rate ensures the desired 4 mg of Lidocaine is delivered per minute. Choices B, C, and D are incorrect as they do not align with the accurate calculation based on the provided information.

2. Which action will be included in the care for a patient who has recently been diagnosed with asymptomatic nonalcoholic fatty liver disease (NAFLD)?

Correct answer: Review the patient's current medication list

Rationale: The correct action for a patient diagnosed with asymptomatic nonalcoholic fatty liver disease (NAFLD) would be to review the patient's current medication list. This is important because certain medications can increase the risk for NAFLD, and they should be identified and possibly eliminated. Teaching about symptoms of variceal bleeding is not necessary as variceal bleeding is not a concern in a patient with asymptomatic NAFLD. Drawing blood for hepatitis serology testing is not indicated as NAFLD is not associated with hepatitis. Discussing the need to increase caloric intake is also not appropriate since weight loss is usually recommended in the management of NAFLD.

3. Which of the following actions is most appropriate when working with a client who is extremely angry?

Correct answer: Temporarily change the subject if the client's behavior is escalating

Rationale: When dealing with an angry client, it is crucial to employ techniques that can help de-escalate the situation or ensure safety while providing care. If the client's behavior is escalating or they are fixating on a particular topic that is fueling their anger, it is advisable to temporarily change the subject. This technique can serve as a distraction from the initial trigger, allowing the client to refocus their thoughts and emotions. Placing a hand on the client's shoulder may not be well-received as physical touch can escalate the situation. Maintaining close proximity might be perceived as confrontational rather than building trust. Closing the door for privacy is important but may not directly address the client's anger or help in de-escalation.

4. A client is taking a walk down the hallway when she suddenly realizes that she needs to use the restroom. Although she tries to make it to the bathroom on time, she is incontinent of urine before reaching the toilet. What type of incontinence does this situation represent?

Correct answer: Functional incontinence

Rationale: Functional incontinence occurs when a client develops an urge to void but may not be able to reach the toilet in time. In this scenario, the client had the urge to use the restroom but was unable to make it in time, leading to incontinence. Functional incontinence may be related to conditions that cause the client to forget bladder sensation until the last minute, such as cognitive changes, or the client may have mobility problems that prevent her from reaching the bathroom in time. Choice A, Reflex incontinence, is incorrect as reflex incontinence is characterized by the involuntary loss of urine due to hyperreflexia of the detrusor muscle. Choice B, Urge incontinence, is not the correct answer as urge incontinence is the involuntary loss of urine associated with a strong desire to void. Choice C, Total incontinence, is also incorrect as it refers to the continuous and unpredictable loss of urine, not specifically related to the inability to reach the toilet in time.

5. The nurse is preparing to administer an enteral feeding to a client via a nasogastric feeding tube. The most important action of the nurse is:

Correct answer: Verify correct placement of the tube

Rationale: The most crucial action for the nurse when preparing to administer enteral feeding via a nasogastric tube is to verify the correct placement of the tube. Proper placement of the tube is vital to prevent complications such as aspiration into the lungs. The definitive methods to confirm the position of the nasogastric tube include visualization through an x-ray or aspirating stomach contents and checking their pH (usually pH 1 to 5). Aspirated stomach content can also be tested for bilirubin to confirm placement in the stomach. Choice B, checking that the feeding solution matches the dietary order, is important for ensuring the correct nutrition is provided but is not as critical as verifying tube placement to prevent potential harm. Choice C, aspirating gastric contents to determine the amount of the last feeding remaining in the stomach, is a common nursing practice but is not the most crucial action when compared to ensuring correct tube placement. Choice D, ensuring that the feeding solution is at room temperature, is relevant for patient comfort and preventing thermal injury but is not as essential as confirming correct tube placement to prevent serious complications.

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