Nursing Elites

1. What is the expected pharmacological action of propranolol?

• A. Block stimulation of beta1 receptors
• B. Alter water and electrolyte transport in the large intestine
• C. Block stimulation of beta2 receptors
• D. Both A and C are correct

Correct answer: D

Rationale: Propranolol exerts its pharmacological action by blocking stimulation of both beta1 and beta2 receptors. By doing so, it leads to decreased heart rate and blood pressure. Therefore, both options A and C are correct as propranolol affects both types of beta receptors. Choice B is incorrect as propranolol does not alter water and electrolyte transport in the large intestine.

2. While caring for a client receiving Heparin therapy, which of the following laboratory tests should the nurse monitor to evaluate the effectiveness of the therapy?

• A. PT
• B. INR
• C. aPTT
• D. Platelet count

Correct answer: C

Rationale: The nurse should monitor the aPTT (activated partial thromboplastin time) when caring for a client receiving Heparin therapy. The aPTT reflects the intrinsic pathway of the clotting cascade and is used to monitor the effectiveness of heparin, which primarily affects this pathway by potentiating antithrombin III. Monitoring the aPTT helps ensure that the client's blood is within the therapeutic range to prevent thrombus formation. Choices A, B, and D are incorrect. PT (Prothrombin Time) and INR (International Normalized Ratio) are used to monitor Warfarin therapy, not Heparin. Platelet count is important in assessing for thrombocytopenia but is not a specific indicator of Heparin therapy effectiveness.

3. A client has a new prescription for Captopril for hypertension. The nurse should monitor the client for which of the following adverse effects of this medication?

• A. Hypokalemia
• B. Hypernatremia
• C. Neutropenia
• D. Bradycardia

Correct answer: C

Rationale: Neutropenia is a serious adverse effect associated with ACE inhibitors like Captopril. It is characterized by a decreased level of neutrophils, which are important in fighting infections. Monitoring the client's complete blood count (CBC) is crucial to detect neutropenia early. The nurse should also educate the client on recognizing signs of infection and promptly reporting them to the healthcare provider for timely intervention. Hypokalemia is a potential adverse effect of diuretics, not ACE inhibitors. Hypernatremia is an electrolyte imbalance more commonly associated with conditions like dehydration. Bradycardia is not a typical adverse effect of Captopril.

4. While providing an Angiotensin-converting enzyme (ACE) inhibitor, the patient asks what the action of the drug is. As a healthcare provider, you explain that the action of an ACE inhibitor is:

• A. To lower blood pressure by blocking the conversion of angiotensin I to vasoconstrictor angiotensin II
• B. To inhibit reabsorption of sodium back into the body, ultimately increasing urine output and lowering blood pressure
• C. To decrease heart rate and blood pressure by competing with Beta1 and Beta2 receptors in the heart and lungs
• D. To lower blood glucose by stimulating the release of insulin

Correct answer: A

Rationale: ACE inhibitors lower blood pressure by blocking the conversion of angiotensin I to vasoconstrictor angiotensin II. Angiotensin II is a potent vasoconstrictor, and by inhibiting its formation, ACE inhibitors help dilate blood vessels, reduce blood pressure, and decrease the workload on the heart. Choice B is incorrect as it describes the mechanism of action of diuretics, not ACE inhibitors. Choice C is incorrect as it refers to the action of beta-blockers, not ACE inhibitors. Choice D is incorrect as it describes the mechanism of action of antidiabetic medications, not ACE inhibitors.

5. A client has a new prescription for Docusate Sodium. Which of the following instructions should the nurse include?

• A. Take the medication with a full glass of water.
• B. Expect results within 30 minutes.
• C. Take this medication at bedtime.
• D. Avoid taking this medication with food.

Correct answer: A

Rationale: The correct instruction for a client prescribed Docusate Sodium is to take the medication with a full glass of water. Docusate sodium is a stool softener, and taking it with water helps to soften the stool and make bowel movements easier. Adequate fluid intake is crucial when taking stool softeners to prevent constipation. Choices B, C, and D are incorrect. B is incorrect because the effects of Docusate Sodium may not be immediate, and it may take a couple of days for the stool softener to work. Choice C is incorrect as there is no specific requirement to take this medication at bedtime. Choice D is incorrect because there is no instruction to avoid taking Docusate Sodium with food.

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