Nokea
A client with a diagnosis of myocardial infarction (MI) is being treated. Which laboratory value would be most concerning?
- A. Troponin level of 0.5 ng/mL
- B. Creatine kinase-MB (CK-MB) of 5.0 ng/mL
- C. Serum potassium of 4.5 mEq/L
- D. Blood glucose of 180 mg/dL
Correct Answer: A
Rationale: A troponin level of 0.5 ng/mL is elevated, indicating myocardial damage, making it the most concerning finding in a client with a myocardial infarction (MI). Troponin is a highly specific marker for cardiac muscle damage, and elevated levels suggest ongoing injury to the heart muscle. While Creatine kinase-MB (CK-MB) is also a cardiac enzyme, troponin is more specific and sensitive for myocardial damage. Serum potassium and blood glucose levels are important parameters to monitor in MI patients, but in this scenario, the elevated troponin level takes precedence as it directly reflects cardiac injury.
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A client needs to maintain a positive nitrogen balance for wound healing. Which of the following food items should the nurse recommend as a good source of complete protein?
- A. Cheddar cheese
- B. White rice
- C. Apples
- D. Green beans
Correct Answer: A
Rationale: Cheddar cheese is the correct answer as it is a good source of complete protein that contains all essential amino acids required for maintaining a positive nitrogen balance for wound healing. Complete proteins provide all essential amino acids needed by the body. White rice, apples, and green beans do not offer complete proteins like cheddar cheese, making them inadequate choices for this purpose.
When caring for a client receiving warfarin sodium (Coumadin), which lab test would the nurse monitor to determine therapeutic response to the drug?
- A. Bleeding time
- B. Coagulation time
- C. Prothrombin time
- D. Partial thromboplastin time
Correct Answer: C
Rationale: The correct answer is C: Prothrombin time (PT). Prothrombin time is monitored to assess the therapeutic response to warfarin therapy. Warfarin works by inhibiting vitamin K-dependent clotting factors, which prolongs the PT. Monitoring PT helps determine if the client's blood is clotting within the desired therapeutic range. Choices A, B, and D are incorrect because bleeding time, coagulation time, and partial thromboplastin time are not specifically used to monitor the therapeutic response to warfarin. Bleeding time assesses platelet function, coagulation time is a general term and not a specific test, and partial thromboplastin time is more relevant in monitoring heparin therapy, not warfarin.
A child weighing 20 kg has a new prescription for cefoxitin at 80 mg/kg/day administered intravenously every 6 hours. How much cefoxitin should be administered with each dose?
- A. 400 mg
- B. 200 mg
- C. 1600 mg
- D. 100 mg
Correct Answer: A
Rationale: To determine the amount of cefoxitin to be administered with each dose, first, calculate the total daily dose by multiplying the child's weight (20 kg) by the prescribed dose (80 mg/kg/day): 80 mg/kg/day 20 kg = 1600 mg/day. Since the medication is administered every 6 hours (4 doses/day), divide the total daily dose by the number of doses: 1600 mg / 4 = 400 mg. Therefore, each dose should be 400 mg. Choice B (200 mg) is incorrect because it is half the calculated dose. Choice C (1600 mg) is incorrect as it represents the total daily dose, not the dose per administration. Choice D (100 mg) is incorrect as it is a quarter of the calculated dose.
At the time of the first dressing change, the client refuses to look at her mastectomy incision. The LPN tells the client that the incision is healing well, but the client refuses to talk about it. What would be an appropriate response to this client's silence?
- A. It is normal to feel angry and depressed, but the sooner you deal with this surgery, the better you will feel.
- B. Looking at your incision can be frightening, but facing this fear is a necessary part of your recovery.
- C. It is OK if you don't want to talk about your surgery. I will be available when you are ready.
- D. I will ask a woman who has had a mastectomy to come by and share her experiences with you.
Correct Answer: C
Rationale: In this situation, it's essential to acknowledge and respect the client's feelings and choices. Choice C is the most appropriate response as it validates the client's decision not to discuss the surgery while offering support and understanding. Giving the client space and letting them know you will be available when they are ready shows empathy and fosters trust. Choices A and B do not respect the client's autonomy and may come across as dismissive or pressuring. Choice D assumes the client needs advice from someone who has had a similar experience without considering the client's current emotional state and preferences.
A nurse in a provider's office is collecting data from the caregiver of a 12-month-old infant who asks if the child is old enough for toilet training. Following an educational session with the nurse, the client agrees to postpone toilet training until the child is older. Learning has occurred in which of the following domains?
- A. Cognitive
- B. Affective
- C. Psychomotor
- D. Kinesthetic
Correct Answer: B
Rationale: The correct answer is B: Affective. The caregiver's decision to postpone toilet training indicates a change in feelings or attitudes, which falls under the affective domain of learning. The affective domain relates to emotions, values, and attitudes. In this scenario, the caregiver's willingness to delay toilet training due to new information reflects a shift in attitude impacted by the educational session provided by the nurse. Choices A, C, and D are incorrect. The cognitive (choice A) domain involves intellectual skills and knowledge, the psychomotor (choice C) domain involves physical skills, and kinesthetic (choice D) is often used interchangeably with the psychomotor domain, which focuses on physical movement and coordination.