ATI RN
Drugs Affecting the Female Reproductive System Quizlet Exam Questions
Question 1 of 5
Actions of thyroxine include the following except:
Correct Answer: A
Rationale: Step-by-step rationale: 1. Thyroxine increases basal metabolic rate. 2. This leads to increased energy expenditure. 3. Increased energy expenditure can lead to negative nitrogen balance. 4. Therefore, induction of negative nitrogen balance is an action of thyroxine. 5. The other choices are incorrect as thyroxine does reduce plasma cholesterol level, fall in plasma free fatty acid level, and rise in blood sugar level.
Question 2 of 5
thyroxine to triiodothyronine Lugol's iodine is used in hyperthyroidism:
Correct Answer: B
Rationale: The correct answer is B: Preoperatively for 10-15 days. Lugol's iodine is used preoperatively in hyperthyroidism to reduce vascularity and size of the thyroid gland, making surgery safer. Administering it for 10-15 days before surgery allows for optimal effects. Choice A is incorrect because Lugol's iodine is not used as long term definitive monotherapy due to its potential side effects and limitations. Choice C is incorrect as Lugol's iodine is not typically used postoperatively for 10-15 days. Choice D is incorrect because Lugol's iodine is not used as an adjuvant to carbimazole for long term therapy; carbimazole is commonly used as a long-term therapy for hyperthyroidism.
Question 3 of 5
Insulin release from pancreatic β cells is augmented by the following except:
Correct Answer: A
Rationale: Insulin release is primarily stimulated by glucose. Ketone bodies are produced during fasting or low-carb diets and do not directly stimulate insulin release. Glucagon stimulates glycogen breakdown and opposes insulin. Vagal stimulation can enhance insulin release through parasympathetic nervous system activation. Alpha adrenergic agonists like epinephrine inhibit insulin release. Therefore, the correct answer is A as ketone bodies do not directly augment insulin release.
Question 4 of 5
The primary route of administration of insulin is:
Correct Answer: B
Rationale: The correct answer is B: Subcutaneous. Insulin is typically administered subcutaneously because it allows for slow and consistent absorption into the bloodstream. Intradermal administration is not ideal for insulin as it may cause skin irritation. Intramuscular administration can lead to erratic absorption and unpredictable blood sugar levels. Intravenous administration is too rapid and can cause dangerous hypoglycemia. Subcutaneous administration provides a balance of absorption rate and is the most common and effective route for insulin delivery.
Question 5 of 5
In a patient of diabetes mellitus maintained on insulin therapy, administration of the following drug can impair glycaemia control:
Correct Answer: A
Rationale: Step-by-step rationale for why choice A (Prednisolone) is correct: 1. Prednisolone is a corticosteroid that can cause hyperglycemia by increasing insulin resistance. 2. This drug can lead to elevated blood glucose levels and worsen glycemic control in diabetic patients. 3. Prednisolone can counteract the effects of insulin, making it difficult to maintain stable blood sugar levels. 4. Therefore, in a patient with diabetes mellitus on insulin therapy, the addition of prednisolone can impair glycemic control. Summary of why the other choices are incorrect: B: Prazosin is an alpha-blocker used to treat hypertension, it does not directly affect glycemia control. C: Paracetamol is an analgesic with no direct impact on blood glucose levels. D: Phenytoin is an antiepileptic drug that does not interfere with glycemic control in diabetes mellitus patients on insulin therapy.