ATI LPN
Gastrointestinal System Questions and Answers Questions
Question 1 of 5
Which of the following best describes the mechanism of action of streptokinase?
Correct Answer: B
Rationale: Streptokinase forms a complex with plasminogen to convert it to plasmin, which degrades fibrin clots, making B (tissue plasminogen activation) the correct answer.
Question 2 of 5
Which of the following drug and loading dose combinations are recommended for immediate antiplatelet therapy of an NSTEMI?
Correct Answer: A
Rationale: For NSTEMI, guidelines recommend aspirin 300 mg and clopidogrel 300 mg loading doses, making A the correct answer.
Question 3 of 5
A 72-year-old patient with lifelong asthma and dilated cardiomyopathy from a viral infection complains of worsening symptoms of shortness of breath. He is on optimal treatment for asthma. His echocardiogram confirms heart failure with an ejection fraction of 30%, which is thought to account for his breathlessness. He has minimal wheeze, bi-basal crackles and oxygen saturations of 95% on air. He is on Furosemide 80 mg twice daily and, ramipril 5 mg once daily with normal renal function. What would be an ideal initial step for this patient?
Correct Answer: D
Rationale: A beta-blocker (e.g., bisoprolol) trial improves mortality in HFrEF (EF 30%), making E the best initial step with normal renal function.
Question 4 of 5
An 82-year-old woman with no past history presents to your clinic complaining of arthritic symptoms. She is on no medications at this time but needs something for her arthritis. You want to put her on nonsteroidal anti-inflammatory medicine but are concerned about her age and the risk of peptic ulcers. She has to pay for her medications out-of-pocket and requests the most inexpensive option possible. The most appropriate treatment plan would be
Correct Answer: A
Rationale: Although this woman is elderly and has a higher risk of developing NSAID toxicity, prophylaxis is currently not recommended unless there is a history of peptic ulcer disease or abdominal symptoms. Celocoxib would be an adequate alternative to minimize her risk but it is considerably more expensive than generic medications such as ibuprofen.
Question 5 of 5
A 56-year-old man chokes on a piece of steak while dining in a restaurant. The steak transiently becomes impacted in his esophagus. The next day, a barium swallow reveals a short, ringlike structure in his distal esophagus.
Correct Answer: C
Rationale: The patient has a congenital Schatzki's ring that produces the described symptoms, which are often referred to as the 'steakhouse syndrome.' The ring is generally disrupted with a single endoscopic dilatation. The Schatzki's ring does not increase the risk for developing esophageal cancer.