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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Nursing Elites

NCLEX-RN

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: A

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 topic is most important to include in patient teaching for a 41-year-old patient diagnosed with early alcoholic cirrhosis?

Correct answer: B

Rationale: The most important topic to include in patient teaching for a 41-year-old patient diagnosed with early alcoholic cirrhosis is avoiding alcohol ingestion. Alcohol abstinence is crucial in stopping or reversing the progression of the disease. While maintaining good nutrition, taking lactulose (Cephulac), and using vitamin B supplements are important interventions in managing cirrhosis, abstaining from alcohol is the priority for this patient to prevent further damage to the liver and halt disease progression.

3. Signs and symptoms of stroke may include all of the following EXCEPT:

Correct answer: D

Rationale: Hypotension is not a typical sign or symptom of an acute stroke. The correct signs and symptoms of a stroke include sudden weakness or numbness of the face, arm, or leg, sudden confusion, and a sudden headache with no known cause. Hypotension, which refers to low blood pressure, is not a common indicator of a stroke. It is important to differentiate between hypotension and hypertension in the context of stroke symptoms, as hypertension (high blood pressure) is actually a risk factor for strokes. Sudden weakness, numbness, confusion, and headache are signs associated with a stroke due to a disruption in blood flow to the brain. Hypotension, on the other hand, primarily indicates low blood pressure and is not directly linked to the typical presentation of a stroke.

4. A client has developed a vitamin C deficiency. Which of the following symptoms might the nurse most likely see with this condition?

Correct answer: C

Rationale: A client with a severe vitamin C deficiency has a condition called scurvy. Scurvy is characterized by symptoms such as bleeding gums, loose teeth, poor wound healing, and easy bruising. The correct answer is 'Bleeding gums and loose teeth' because these are classic signs of scurvy due to vitamin C deficiency. Choice A ('Cracks at the corners of the mouth') is more indicative of a deficiency in B vitamins, specifically riboflavin. Choice B ('Altered mental status') is not typically associated with vitamin C deficiency but can occur with other conditions like vitamin B12 deficiency. Choice D ('Anorexia and diarrhea') are not common symptoms of vitamin C deficiency, as they are more commonly associated with other gastrointestinal issues or deficiencies in different nutrients.

5. While taking the health history of a 70-year-old patient being treated for a Duodenal Ulcer, the nurse learns that the patient is complaining of epigastric pain. What assessment finding would the nurse expect to note?

Correct answer: A

Rationale: Melena is the passage of black, tarry stools due to the presence of blood in the gastrointestinal tract, usually originating from the upper digestive system. In the context of a Duodenal Ulcer, melena can occur as a result of bleeding in the duodenum or the upper part of the small intestine. This finding is significant as it indicates potential gastrointestinal bleeding, which is a common complication of duodenal ulcers. Nausea (Choice B) is a nonspecific symptom that may be present with various gastrointestinal conditions but is not specific to duodenal ulcers. Hernia (Choice C) involves the protrusion of an organ through the wall of the cavity that normally contains it and is not directly related to the symptoms of a duodenal ulcer. Hyperthermia (Choice D), which refers to an elevated body temperature, is not typically associated with duodenal ulcers unless there are severe complications present.

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