Nursing Elites

1. Which diagnostic test is used to confirm tuberculosis (TB) infection?

• A. Chest X-ray
• B. Sputum culture
• C. Skin test (Mantoux)
• D. MRI

Correct answer: C

Rationale: The Mantoux skin test, also known as the Tuberculin Skin Test (TST), is used to confirm tuberculosis (TB) infection. This test involves injecting a small amount of tuberculin protein derivative under the top layer of the skin and then evaluating the immune system's response to the protein. A positive reaction indicates exposure to the TB bacteria. Chest X-rays are used to detect abnormalities in the lungs caused by TB but are not confirmatory. Sputum culture is used to identify the presence of TB bacteria in the sputum. MRIs are not typically used as a primary diagnostic tool for TB.

2. A nurse is caring for a client who is receiving continuous cardiac monitoring. The client's heart rate is 69/min, and the PR interval is 0.24 seconds. What cardiac rhythm should the nurse interpret this finding as?

• A. First-degree AV block.
• B. Premature ventricular contraction.
• C. Sinus bradycardia.
• D. Atrial fibrillation.

Correct answer: A

Rationale: The correct answer is A: First-degree AV block. A PR interval of 0.24 seconds indicates a prolonged PR interval, which is characteristic of first-degree AV block. This rhythm is considered benign and often does not require treatment. Choice B, premature ventricular contraction, is characterized by early, abnormal ventricular contractions and would not be indicated by the findings provided. Choice C, sinus bradycardia, would present with a normal PR interval but a heart rate less than 60 beats per minute. Choice D, atrial fibrillation, is characterized by an irregularly irregular rhythm with no identifiable P waves, which does not align with the findings of a prolonged PR interval in this scenario.

3. A client who has a new prescription for levothyroxine is being taught by a nurse. Which of the following client statements indicates an understanding of the teaching?

• A. ''I will need to take this medication for the rest of my life.''
• B. ''I will take this medication with an antacid.''
• C. ''I should avoid eating foods that contain iodine.''
• D. ''You should store this medication in the refrigerator.''

Correct answer: A

Rationale: The correct answer is A: ''I will need to take this medication for the rest of my life.'' Levothyroxine is a lifelong medication for clients with hypothyroidism and should be taken as prescribed. Choice B is incorrect because levothyroxine should not be taken with antacids as they can interfere with its absorption. Choice C is incorrect as iodine-containing foods do not need to be avoided with levothyroxine. Choice D is incorrect because levothyroxine should be stored at room temperature, not in the refrigerator.

4. A client at 10 weeks of gestation reports frequent nausea and vomiting. Which of the following instructions should the nurse include?

• A. Eat high-protein foods.
• B. Lie down after meals.
• C. Drink water with meals.
• D. Eat dry carbohydrates before getting out of bed.

Correct answer: D

Rationale: During early pregnancy, nausea and vomiting are common. Instructing the client to eat dry carbohydrates like crackers before getting out of bed can help alleviate these symptoms. This recommendation helps prevent an empty stomach, which can worsen nausea. High-protein foods (Choice A) may be harder to digest and could exacerbate nausea. Lying down after meals (Choice B) may increase gastric reflux and worsen symptoms. Drinking water with meals (Choice C) may make the client feel fuller, potentially worsening nausea.

5. A nurse is assessing a client who is in active labor. The FHR baseline has been 100/min for the past 15 minutes. What condition should the nurse suspect?

• A. Maternal fever.
• B. Fetal anemia.
• C. Maternal hypoglycemia.
• D. Chorioamnionitis.

Correct answer: C

Rationale: In this scenario, the FHR baseline of 100/min for the past 15 minutes indicates fetal bradycardia, which can be caused by maternal hypoglycemia. Maternal hypoglycemia can lead to decreased oxygen supply to the fetus, resulting in fetal bradycardia. Maternal fever (Choice A) typically presents with tachycardia in the fetus rather than bradycardia. Fetal anemia (Choice B) is more likely to manifest as tachycardia due to compensation for decreased oxygen delivery. Chorioamnionitis (Choice D) may lead to fetal tachycardia as a sign of fetal distress, not bradycardia.

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