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A patient with an anxiety disorder is prescribed alprazolam. What is the primary action of this medication?
- A. Increase energy levels
- B. Induce sedation
- C. Elevate mood
- D. Reduce anxiety
Correct Answer: D
Rationale: The correct answer is D: Reduce anxiety. Alprazolam is a benzodiazepine that acts on the central nervous system to enhance the effects of a neurotransmitter called GABA, which helps to calm the brain and reduce anxiety. This medication does not increase energy levels (choice A), induce sedation (choice B), or elevate mood (choice C). Alprazolam's primary action is to target and alleviate the symptoms of anxiety by promoting relaxation and reducing excessive brain activity associated with anxiety disorders.
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What is an important teaching point for a patient prescribed dabigatran for atrial fibrillation?
- A. Take the medication with food to enhance absorption.
- B. Do not crush or chew the capsules.
- C. Increase intake of green leafy vegetables.
- D. Avoid all dairy products.
Correct Answer: B
Rationale: Correct Answer: B
Rationale:
1. Dabigatran is an anticoagulant medication that comes in capsules, which should not be crushed or chewed to maintain its extended-release formulation.
2. Crushing or chewing the capsules can lead to an increased risk of bleeding due to rapid release of the medication.
3. Therefore, advising the patient not to crush or chew the capsules is crucial to ensure the safety and efficacy of dabigatran therapy.
Summary:
A: Taking with food is not necessary for dabigatran absorption.
C: Green leafy vegetables are high in vitamin K, which can interfere with anticoagulant therapy.
D: There is no need to avoid all dairy products while taking dabigatran.
A patient with chronic heart failure is prescribed furosemide. What is the primary action of this medication?
- A. Increase cardiac output
- B. Reduce fluid retention
- C. Decrease heart rate
- D. Lower blood pressure
Correct Answer: B
Rationale: The correct answer is B: Reduce fluid retention. Furosemide is a loop diuretic that works by increasing urine production, leading to the removal of excess fluid and sodium from the body. This helps reduce fluid volume overload in conditions like heart failure. Choice A is incorrect because while reducing fluid retention may indirectly improve cardiac output by reducing preload, furosemide itself does not directly increase cardiac output. Choice C is incorrect as furosemide does not have a direct effect on heart rate. Choice D is incorrect because while furosemide may lower blood pressure as a result of reducing fluid volume, its primary action is to reduce fluid retention, not specifically lower blood pressure.
While assessing a client with diabetes mellitus, the nurse observes an absence of hair growth on the client's legs. What additional assessment provides further data to support this finding?
- A. Palpate for the presence of femoral pulses bilaterally.
- B. Assess for the presence of a positive Homan's sign.
- C. Observe the appearance of the skin on the client's legs.
- D. Watch the client's posture and balance during ambulation.
Correct Answer: C
Rationale: The correct answer is C: Observe the appearance of the skin on the client's legs. In clients with diabetes mellitus, poor circulation can lead to decreased hair growth on the legs. By observing the skin appearance, the nurse can look for signs of poor circulation such as dry skin, thinning of the skin, or discoloration. This assessment provides further data to support the finding of absent hair growth.
Choices A, B, and D are incorrect because they do not directly relate to the assessment of absent hair growth in clients with diabetes mellitus. Palpating for femoral pulses assesses circulation but does not specifically address the absence of hair growth. Assessing for Homan's sign evaluates for deep vein thrombosis, which is not directly related to hair growth. Watching posture and balance during ambulation assesses mobility and stability but does not provide information on hair growth or circulation in the legs.
Following a CVA, the nurse assesses that a client has developed dysphagia, hypoactive bowel sounds, and a firm, distended abdomen. Which prescription for the client should the nurse question?
- A. Continuous tube feeding at 65 ml/hr via gastrostomy.
- B. Total parenteral nutrition to be infused at 125 ml/hour.
- C. Nasogastric tube connected to low intermittent suction.
- D. Metoclopramide (Reglan) intermittent piggyback.
Correct Answer: A
Rationale: The correct answer is A: Continuous tube feeding at 65 ml/hr via gastrostomy. After a CVA, dysphagia, hypoactive bowel sounds, and a firm, distended abdomen indicate a risk for aspiration and bowel obstruction. Continuous tube feeding may worsen these issues. Option B provides nutrition intravenously, bypassing the gastrointestinal tract. Option C helps decompress the stomach. Option D is a medication to help with GI motility. Therefore, the nurse should question option A due to the risk of complications post-CVA.
The healthcare provider prescribes 15 mg/kg of Streptomycin for an infant weighing 4 pounds. The drug is diluted in 25 ml of D5W to run over 8 hours. How much Streptomycin will the infant receive?
- A. 9 mg
- B. 18 mg
- C. 27 mg
- D. 36 mg
Correct Answer: A
Rationale: To calculate the dose of Streptomycin, we first need to convert the infant's weight from pounds to kg (4 lbs = 1.81 kg). Then, we multiply the weight in kg by the prescribed dose (15 mg/kg) to get the total dose (1.81 kg * 15 mg/kg = 27.15 mg). Since the drug is diluted in 25 ml of D5W, the infant will receive 27.15 mg in 25 ml solution. To find how much Streptomycin the infant actually receives, we need to calculate the amount in 1 ml (27.15 mg / 25 ml = 1.086 mg/ml). Finally, to determine how much the infant will receive over 8 hours, we multiply the concentration by the infusion rate (1.086 mg/ml * 25 ml * 8 hours = 217.2 mg). Therefore, the correct answer is A: 9 mg, as it represents the amount