HESI RN
Pharmacology HESI Quizlet
1. A client with hypertension is prescribed losartan (Cozaar). Which instruction should the nurse include in the teaching plan?
- A. Avoid foods high in potassium.
- B. Take the medication with grapefruit juice.
- C. Monitor blood pressure weekly.
- D. Report any swelling of the lips or face.
Correct answer: D
Rationale: The correct instruction for a client prescribed losartan (Cozaar) is to report any swelling of the lips or face. Losartan can cause angioedema, which is a serious side effect that requires immediate medical attention. Clients do not need to avoid potassium-rich foods unless specifically instructed by their healthcare provider. Taking the medication with grapefruit juice is not recommended as it can interact with certain medications. Additionally, monitoring blood pressure regularly is important, but it should not be limited to a weekly basis; blood pressure should be monitored as per the healthcare provider's recommendation.
2. Which of the following terms is used to represent two alleles that are the same type?
- A. Homosynchronous
- B. Hypersynchronous
- C. Heterozygous
- D. Homozygous
Correct answer: D
Rationale: The correct answer is D, 'Homozygous.' Homozygous refers to having two identical alleles for a particular gene. In this context, 'Homosynchronous' (choice A) is not a recognized genetic term. 'Hypersynchronous' (choice B) is not a term used in genetics. 'Heterozygous' (choice C) refers to having two different alleles for a particular gene, which is the opposite of homozygous.
3. Twenty minutes after beginning a heat application, the client states that the heating pad no longer feels warm enough. What is the best response by the nurse?
- A. That means you have derived the maximum benefit, and the heat can be removed.
- B. Your blood vessels are becoming dilated and removing the heat from the site.
- C. We will increase the temperature by 5 degrees when the pad no longer feels warm.
- D. The body's receptors adapt over time as they are exposed to heat.
Correct answer: D
Rationale: Choice (D) describes thermal adaptation, which occurs 20 to 30 minutes after heat application. The body's receptors adjust to the constant heat exposure, leading to a decreased sensation of warmth. Choices (A) and (B) provide inaccurate information regarding the situation, while choice (C) is not physiologically sound and could potentially harm the client by increasing the temperature unnecessarily.
4. The nurse is planning to administer two medications at 0900. Which property of the drugs indicates a need to monitor the client for toxicity?
- A. Short half-life
- B. High therapeutic index
- C. Highly protein-bound
- D. Low bioavailability
Correct answer: C
Rationale: The correct answer is C, 'Highly protein-bound.' Drugs that are highly protein-bound can displace from protein-binding sites, leading to increased free drug levels in the blood, which can result in toxicity. Monitoring the client for toxicity is crucial when administering highly protein-bound drugs. Choices A, B, and D are incorrect. A short half-life does not necessarily indicate a need for monitoring toxicity; a high therapeutic index indicates a wide safety margin between the effective dose and the toxic dose, reducing the risk of toxicity; low bioavailability refers to the fraction of the drug that reaches the systemic circulation unchanged and does not directly relate to the risk of toxicity.
5. When developing a plan of care for a client admitted to the psychiatric unit following aspiration of a caustic material related to a suicide attempt, which nursing problem has the highest priority?
- A. Impaired comfort.
- B. Risk for injury.
- C. Ineffective breathing pattern.
- D. Ineffective coping.
Correct answer: C
Rationale: Ineffective breathing pattern is the highest priority nursing problem in this scenario because aspiration of a caustic material can lead to serious airway and respiratory issues. This poses an immediate threat to the client's life and requires urgent intervention to ensure adequate oxygenation and ventilation. The other options, such as Impaired comfort, Risk for injury, and Ineffective coping, are important but are secondary concerns compared to the critical nature of respiratory compromise in this situation.