which oxygen delivery system would the nurse apply that would provide the highest concentrations of oxygen to the client
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Nursing Elites

NCLEX-RN

NCLEX RN Practice Questions Exam Cram

1. Which oxygen delivery system would provide the highest concentrations of oxygen to the client?

Correct answer: C

Rationale: The correct answer is the non-rebreather mask. This oxygen delivery system has a one-way valve that prevents exhaled air from entering the reservoir bag and one or more valves covering the air holes on the face mask itself to prevent the inhalation of room air but allow exhalation of air. When a tight seal is achieved around the mask, up to 100% of oxygen is available. Choice A, the Venturi mask, delivers precise oxygen concentrations but not as high as the non-rebreather mask. Choice B, the partial rebreather mask, allows the client to rebreathe some exhaled air, resulting in lower oxygen concentrations than the non-rebreather mask. Choice D, the simple face mask, delivers low to moderate oxygen concentrations and is not designed to provide the highest concentrations like the non-rebreather mask.

2. A pregnant woman who is 36 weeks' pregnant and has hepatitis B is being informed by a nurse. Which of the following statements from the client indicates understanding of this condition?

Correct answer: B

Rationale: The correct answer is 'My baby will need two shots soon after birth.' A baby born to a mother with hepatitis B should receive two injections soon after birth to reduce the risk of contracting the disease. Within the first 12 hours post-birth, the baby should receive the first hepatitis B vaccine and hepatitis B immune globulin (HBIG) for additional protection. Option A is incorrect because the need for a cesarean section is not directly related to the mother's hepatitis B status. Option C is incorrect as breastfeeding can be safe if managed properly. Option D is incorrect as the baby's father should also be tested for hepatitis B to prevent transmission to the newborn.

3. A client complained of nausea, a metallic taste in her mouth, and fine hand tremors 2 hours after her first dose of lithium carbonate (Lithane). What is the nurse's best explanation of these findings?

Correct answer: A

Rationale: The correct answer is, 'These side effects are common and should subside in a few days.' Nausea, metallic taste, and fine hand tremors are common side effects of lithium carbonate (Lithane) and typically diminish within a few days as the body adjusts to the medication. Option B is incorrect because these symptoms are not indicative of an allergic reaction. Option C is incorrect as taking lithium on an empty stomach does not directly address or decrease these specific side effects. Option D is also incorrect as reducing sodium and fluid intake is not the recommended approach to managing these particular side effects of lithium.

4. After assessing Mr. B, what is the initial action of the nurse?

Correct answer: A

Rationale: The first action the nurse should take after assessing Mr. B is to administer oxygen and assist him to sit in the semi-Fowler's position. Administering oxygen helps improve tissue oxygenation, while sitting up in a semi-Fowler's position aids in better breathing and secretion clearance. Placing the client in a negative-pressure room is not the immediate priority unless isolation is needed. Performing a bronchoscopy or contacting the physician for antifungal medications is not the initial step in managing a client with suspected pneumonia.

5. A patient's nursing diagnosis is Insomnia. The desired outcome is: "Patient will sleep for a minimum of 5 hours nightly by October 31."? On November 1, a review of the sleep data shows the patient sleeps an average of 4 hours nightly and takes a 2-hour afternoon nap. What is the nurse's next action?

Correct answer: D

Rationale: The correct action for the nurse in this scenario is to revise the target date for outcome attainment and reevaluate interventions. The initial desired outcome was for the patient to sleep for a minimum of 5 hours nightly by October 31. Since the patient is currently sleeping an average of 4 hours nightly and taking a 2-hour afternoon nap, the goal has not been achieved. By extending the time frame for attaining the outcome, the patient may have more time to progress towards the desired sleep duration. Additionally, examining interventions is crucial to identify any changes or adjustments that may be necessary to help the patient achieve the desired outcome. Continuing the current plan without changes is not appropriate as the goal has not been met. Removing the nursing diagnosis from the plan of care should only be considered when the problem is resolved. Writing a new nursing diagnosis is not needed as the current diagnosis of Insomnia still accurately reflects the patient's condition.

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