NCLEX-RN
NCLEX RN Exam Review Answers
1. A patient asks the nurse why they must have a heparin injection. What is the nurse's best response?
- A. Heparin will dissolve clots that you have.
- B. Heparin will reduce the platelets that make your blood clot.
- C. Heparin will work better than warfarin.
- D. Heparin will prevent new clots from developing.
Correct answer: D
Rationale: The correct answer is D: 'Heparin will prevent new clots from developing.' Heparin is an anticoagulant medication that helps prevent the formation of new blood clots. It does not dissolve existing clots (choice A), reduce platelets (choice B), or necessarily work 'better' than warfarin (choice C) but rather functions differently. The primary action of heparin is to prevent the development of new clots, especially in conditions where clot formation is a concern.
2. The infection control nurse is assigned to a patient with osteomyelitis related to a heel ulcer. The wound is 5cm in diameter and the drainage saturates the dressing so that it must be changed every hour. What is her priority intervention?
- A. Place the patient under contact precautions
- B. Use strict aseptic technique when caring for the wound
- C. Place another dressing to reinforce the first one
- D. Elevate the patient's leg to prevent more drainage
Correct answer: A
Rationale: The priority intervention for a patient with osteomyelitis related to a heel ulcer, with a wound that saturates the dressing every hour, is to place the patient under contact precautions. Contact precautions are essential when managing infectious wounds to prevent the spread of infection to healthcare workers, other patients, and visitors. Strict aseptic technique (Choice B) should always be used with wound care but is secondary to implementing contact precautions in this scenario. Placing another dressing (Choice C) or elevating the patient's leg (Choice D) may be necessary but do not address the immediate need for infection control measures.
3. The home health nurse visits a male client to provide wound care and finds the client lethargic and confused. His wife states he fell down the stairs two (2) hours ago. The nurse should
- A. Place a call to the client's healthcare provider for instructions
- B. Send him to the emergency room for evaluation
- C. Reassure the client's wife that the symptoms are transient
- D. Instruct the client's wife to call the doctor if his symptoms become worse
Correct answer: B
Rationale: In this scenario, the client is presenting with concerning symptoms of lethargy and confusion after a fall. These symptoms could indicate a serious underlying issue, such as a head injury or internal bleeding. The nurse's priority is to ensure the client receives immediate evaluation and treatment to prevent any further harm. Option B is the correct choice as it emphasizes the urgency of the situation. Choices A, C, and D are incorrect because they do not address the critical nature of the client's condition. Contacting the healthcare provider, reassuring the wife, or waiting for symptoms to worsen could delay necessary medical intervention.
4. In which of the following conditions would a healthcare provider not administer erythromycin?
- A. Campylobacteriosis infection
- B. Legionnaires disease
- C. Pneumonia
- D. Multiple Sclerosis
Correct answer: D
Rationale: Erythromycin is an antibiotic used to treat bacterial infections. Multiple sclerosis (MS) is an autoimmune disease affecting the central nervous system, involving the brain and spinal cord. Since MS is not caused by bacteria, administering erythromycin would not be appropriate. Campylobacteriosis infection, Legionnaires disease, and pneumonia are bacterial infections that can be treated with erythromycin, making them incorrect choices for conditions where erythromycin would not be administered.
5. Which oxygen delivery system would provide the highest concentrations of oxygen to the client?
- A. Venturi mask
- B. Partial rebreather mask
- C. Non-rebreather mask
- D. Simple face mask
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.
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