a patient with hyperthyroidism is prescribed propylthiouracil ptu what is the primary purpose of this medication

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ATI Adult Medical Surgical

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. A 46-year-old man with a history of cirrhosis is brought in by his wife because he has been acting strangely. On examination, he is disoriented, ataxic, and has slurred speech. He is also hyperreflexic. His white blood cell count is normal. His hematocrit is 34%. Coagulation times are elevated. His ammonia level is normal. Which of the following statements regarding his management is correct?

A. He should be treated with a low-protein diet and lactulose
B. Lorazepam is not the drug of choice to control his behavior
C. He should not be placed on gentamicin prophylactically to prevent the development of peritonitis
D. If the patient complains of pain, acetaminophen should be avoided and nonsteroidal anti-inflammatory agents should be used

Correct answer: A

Rationale: This patient presents with symptoms consistent with hepatic encephalopathy. Despite having a normal ammonia level, he should be treated with lactulose and a low-protein diet as recommended for stage 2 hepatic encephalopathy. The normal ammonia level does not exclude the diagnosis, as it lacks sensitivity and specificity. Medications like lorazepam, gentamicin, and NSAIDs should be avoided due to their potential adverse effects in patients with liver disease. Acetaminophen should also be avoided in such patients.

3. A male infant born at 30-weeks gestation at an outlying hospital is being prepared for transport to a Level IV neonatal facility. His respirations are 90/min, and his heart rate is 150 beats per minute. Which drug is the transport team most likely to administer to this infant?

A. Ampicillin (Omnipen) 25 mg/kg slow IV push.
B. Gentamicin sulfate (Garamycin) 2.5 mg/kg IV.
C. Digoxin (Lanoxin) 20 micrograms/kg IV.
D. Beractant (Survanta) 100 mg/kg per endotracheal tube.

Correct answer: D

Rationale: In this scenario, the infant is a preterm neonate with respiratory distress and is being transported to a Level IV neonatal facility. The drug most likely to be administered by the transport team is Beractant (Survanta) via endotracheal tube. Beractant is a surfactant used to treat respiratory distress syndrome in preterm infants by improving lung compliance and reducing the need for mechanical ventilation.

4. A patient with chronic obstructive pulmonary disease (COPD) is experiencing severe dyspnea. What position should the nurse encourage the patient to assume?

A. Supine
B. Prone
C. High Fowler's
D. Trendelenburg

Correct answer: C

Rationale: The High Fowler's position is the most appropriate position for a patient with COPD experiencing severe dyspnea. This position helps improve lung expansion and reduce dyspnea by allowing the diaphragm to move more freely and increasing the efficiency of breathing. It also helps reduce the work of breathing and enhances oxygenation in patients with COPD. Supine position (Choice A) may worsen dyspnea by limiting lung expansion. Prone position (Choice B) is not ideal for COPD patients experiencing severe dyspnea as it may restrict breathing. Trendelenburg position (Choice D) is not recommended for COPD patients with dyspnea as it can further compromise breathing.

5. An elderly female client comes to the clinic for a regular check-up. The client tells the nurse that she has increased her daily doses of acetaminophen (Tylenol) for the past month to control joint pain. Based on this client's comment, what previous lab values should the nurse compare with today's lab report?

A. Look at last quarter's hemoglobin and hematocrit to assess for dehydration.
B. Look for an increase in today's LDH compared to the previous one to assess for possible liver damage.
C. Expect to find an increase in today's APTT compared to last quarter's due to bleeding.
D. Determine if there is a decrease in serum potassium due to renal compromise.

Correct answer: B

Rationale: When a client increases their daily doses of acetaminophen for joint pain, it raises concerns about possible liver damage due to acetaminophen overdose. LDH (Lactate Dehydrogenase) levels can indicate liver function, so comparing today's levels with previous ones can help assess for liver damage caused by acetaminophen overuse.