Nursing Elites

1. A patient with hyperthyroidism is prescribed propylthiouracil (PTU). What is the primary purpose of this medication?

• A. Increase thyroid hormone production
• B. Suppress thyroid hormone production
• C. Enhance iodine absorption
• D. Stimulate the thyroid gland

Correct answer: B

Rationale: Propylthiouracil (PTU) is a medication used to treat hyperthyroidism by suppressing the production of thyroid hormones. It works by inhibiting the enzyme responsible for the synthesis of thyroid hormones, thereby reducing their levels in the body. This helps to alleviate the symptoms of hyperthyroidism and restore thyroid hormone levels to normal range.

2. What instruction should a patient with a history of hypertension be provided when being discharged with a prescription for a thiazide diuretic?

• A. Avoid foods high in potassium.
• B. Take the medication at bedtime.
• C. Monitor weight daily.
• D. Limit fluid intake to 1 liter per day.

Correct answer: C

Rationale: The correct instruction for a patient with a history of hypertension being discharged with a prescription for a thiazide diuretic is to monitor weight daily. This is important because thiazide diuretics can cause fluid imbalances, and monitoring weight daily can help detect significant changes early. Choice A, avoiding foods high in potassium, is not directly related to thiazide diuretics. Choice B, taking the medication at bedtime, may vary depending on the specific medication but is not a universal instruction. Choice D, limiting fluid intake to 1 liter per day, is not appropriate as adequate hydration is important to prevent complications like hypokalemia.

3. A 60-year-old man presents with fatigue, polyuria, and polydipsia. Laboratory tests reveal hyperglycemia and ketonuria. What is the most likely diagnosis?

• A. Type 1 diabetes mellitus
• B. Type 2 diabetes mellitus
• C. Diabetes insipidus
• D. Hyperthyroidism

Correct answer: A

Rationale: The presentation of a 60-year-old man with fatigue, polyuria, polydipsia, hyperglycemia, and ketonuria strongly suggests type 1 diabetes mellitus. Type 1 diabetes typically presents with acute symptoms due to absolute insulin deficiency, leading to hyperglycemia and ketonuria. Conversely, type 2 diabetes often presents more insidiously and is associated with relative insulin deficiency and insulin resistance. Diabetes insipidus, a condition characterized by excessive thirst and excretion of large amounts of dilute urine, is due to problems with antidiuretic hormone (ADH) and is not associated with hyperglycemia or ketonuria. Hyperthyroidism, while also presenting with symptoms like fatigue, does not typically manifest with hyperglycemia or ketonuria. Therefore, based on the clinical presentation and laboratory findings, the most likely diagnosis in this case is type 1 diabetes mellitus.

4. Which of the following statements about Helicobacter pylori (H. pylori) is false?

• A. H. pylori does not invade the gastric or duodenal epithelium
• B. H. pylori stimulates gastric acid secretion
• C. Eradication of H. pylori prevents adenocarcinoma of the stomach
• D. H. pylori produces a urease that splits urea into ammonia and CO2

Correct answer: C

Rationale: H. pylori is known to reside in the mucus layer of the stomach and does not invade the epithelium. It produces urease that splits urea into ammonia and CO2. This action helps in neutralizing the acidic environment and allows H. pylori to survive. Additionally, urease activity can be detected in diagnostic tests for H. pylori. The stimulation of gastric acid secretion and disruption of the protective mucus layer are mechanisms by which H. pylori promotes injury. While eradicating H. pylori infection has been associated with a decreased risk of developing gastric cancer, it does not prevent adenocarcinoma of the stomach entirely.

5. A client with a history of gout is experiencing an acute attack. Which medication should the nurse expect the healthcare provider to prescribe?

• A. Aspirin.
• B. Allopurinol (Zyloprim).
• C. Colchicine.
• D. Probenecid (Benemid).

Correct answer: C

Rationale: During an acute gout attack, the healthcare provider is likely to prescribe colchicine. Colchicine is commonly used to treat acute gout attacks because it works by reducing inflammation and alleviating pain associated with the condition. It is important to note that aspirin is not recommended for gout treatment and may even exacerbate the symptoms. Allopurinol and probenecid are medications used for long-term management of gout by reducing uric acid levels in the blood, but they are not typically prescribed during an acute attack. Therefore, colchicine is the most appropriate medication for managing an acute gout attack.

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