what is the expected pharmacological action of propranolol

ATI RN

Proctored Pharmacology ATI

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. What is the antidote for Heparin?

A. Atropine
B. Protamine sulfate
C. Calcium carbonate
D. Ferrous sulfate

Correct answer: B

Rationale: Protamine sulfate is the specific antidote used to reverse the effects of Heparin by binding to heparin and neutralizing its anticoagulant properties. It is crucial to administer Protamine sulfate promptly in cases of Heparin overdose or when immediate reversal of Heparin's effects is required to prevent bleeding complications. Atropine is not the antidote for Heparin; it is commonly used for treating bradycardia. Calcium carbonate is used to treat conditions like acid indigestion, heartburn, or calcium deficiency. Ferrous sulfate is a form of iron supplement used to treat or prevent iron deficiency anemia. None of these alternatives are antidotes for Heparin.

3. When caring for a client prescribed Digoxin, which finding should the nurse monitor to assess for potential toxicity?

A. Bradycardia
B. Hypertension
C. Hypoglycemia
D. Hypercalcemia

Correct answer: A

Rationale: Bradycardia is a common sign of Digoxin toxicity. Digoxin, a cardiac glycoside, can lead to toxic effects such as bradycardia, which is a slow heart rate. Therefore, the nurse should closely monitor the client's heart rate for any significant decreases, as this could indicate Digoxin toxicity and prompt further intervention. Choices B, C, and D are incorrect because Digoxin toxicity typically presents with bradycardia, not hypertension, hypoglycemia, or hypercalcemia.

4. A healthcare provider is caring for a client who has a new prescription for Clonidine. Which of the following adverse effects should the healthcare provider monitor?

A. Drowsiness
B. Dry mouth
C. Weight gain
D. Insomnia

Correct answer: B

Rationale: The correct answer is B: Dry mouth. Dry mouth is a common adverse effect of Clonidine. Clonidine can cause a reduction in salivary flow, leading to dry mouth. This symptom can be managed by increasing fluid intake or using sugar-free gum or candy to stimulate saliva production. Choices A, C, and D are incorrect. While drowsiness and insomnia are potential side effects of Clonidine, dry mouth is more commonly reported. Weight gain is not typically associated with Clonidine use.

5. Which adverse reaction poses the greatest life-threatening risk when taking Omeprazole?

A. Chest pain
B. Constipation
C. Clostridium difficile-associated diarrhea
D. Acute interstitial nephritis

Correct answer: C

Rationale: The most life-threatening adverse reaction associated with Omeprazole is Clostridium difficile-associated diarrhea. This condition can be severe and life-threatening due to the potential for dehydration, electrolyte imbalances, and complications such as toxic megacolon. Chest pain, constipation, and acute interstitial nephritis are potential side effects of Omeprazole but are not considered as life-threatening as Clostridium difficile-associated diarrhea. Monitoring for signs of this adverse reaction is crucial, and immediate medical attention should be sought if symptoms develop.