Nokea
Which response by the nurse best explains the purpose of ranitidine (Zantac) for a patient admitted with bleeding esophageal varices?
- A. The medication will reduce the risk of aspiration.
- B. The medication will inhibit the development of gastric ulcers.
- C. The medication will prevent irritation of the enlarged veins.
- D. The medication will decrease nausea and improve appetite.
Correct Answer: C
Rationale: The correct answer is: 'The medication will prevent irritation of the enlarged veins.' Esophageal varices are dilated submucosal veins. The therapeutic action of H2-receptor blockers in patients with esophageal varices is to prevent irritation and bleeding from the varices caused by reflux of acidic gastric contents. While ranitidine can decrease the risk of peptic ulcers, reduce nausea, and help prevent aspiration pneumonia, the primary purpose of H2-receptor blockade in this patient is to prevent irritation and bleeding from the varices, not the other listed effects.
You may also like to solve these questions
Which assessment finding would the nurse need to report most quickly to the health care provider regarding a patient with acute pancreatitis?
- A. Nausea and vomiting
- B. Hypotonic bowel sounds
- C. Abdominal tenderness and guarding
- D. Muscle twitching and finger numbness
Correct Answer: D
Rationale: The correct answer is muscle twitching and finger numbness. These symptoms indicate hypocalcemia, which can lead to tetany if not promptly addressed with calcium gluconate administration. Nausea and vomiting, hypotonic bowel sounds, and abdominal tenderness and guarding are important findings in acute pancreatitis but do not require the same urgent intervention as hypocalcemia to prevent potential severe complications.
A man is prescribed lithium to treat bipolar disorder. The nurse is most concerned about lithium toxicity when he notices which of these assessment findings?
- A. The patient states he had a manic episode a week ago
- B. The patient states he has been having diarrhea every day
- C. The patient presents as severely depressed
- D. The patient has a rash and pruritus on his arms and legs
Correct Answer: B
Rationale: The correct answer is when the patient states he has been having diarrhea every day. Persistent diarrhea can lead to dehydration, which can increase the risk of lithium toxicity. The other options, such as a manic episode, severe depression, or rash and pruritus, are not directly associated with an increased risk of lithium toxicity.
A female patient with atrial fibrillation has the following lab results: Hemoglobin of 11 g/dl, a platelet count of 150,000, an INR of 2.5, and potassium of 2.7 mEq/L. Which result is critical and should be reported to the physician immediately?
- A. Hemoglobin of 11 g/dl
- B. Platelet count of 150,000
- C. INR of 2.5
- D. Potassium of 2.7 mEq/L
Correct Answer: D
Rationale: The critical lab result that should be reported to the physician immediately in this case is the potassium level of 2.7 mEq/L. A potassium imbalance, especially in a patient with a history of dysrhythmia like atrial fibrillation, can be life-threatening and lead to cardiac distress. Low potassium levels (hypokalemia) can predispose the patient to dangerous arrhythmias, including worsening atrial fibrillation. Hemoglobin of 11 g/dl, platelet count of 150,000, and an INR of 2.5 are within acceptable ranges and not as immediately concerning as a low potassium level in this clinical context.
A 34-year-old patient with chronic hepatitis C infection has several medications prescribed. Which medication requires further discussion with the healthcare provider before administration?
- A. Ribavirin (Rebetol, Copegus) 600 mg PO bid
- B. Pegylated α-interferon (PEG-Intron, Pegasys) SQ weekly
- C. Diphenhydramine (Benadryl) 25 mg PO every 4 hours PRN itching
- D. Dimenhydrinate (Dramamine) 50 mg PO every 6 hours PRN nausea
Correct Answer: B
Rationale: The correct answer is B: Pegylated α-interferon (PEG-Intron, Pegasys) SQ weekly. Pegylated α-interferon is typically administered once weekly, not daily. Therefore, this medication requires further discussion with the healthcare provider before administration to ensure the correct dosing frequency. Ribavirin, choice A, is appropriate for chronic hepatitis C treatment. Choices C and D, Diphenhydramine and Dimenhydrinate, are commonly used for symptomatic relief in patients with hepatitis C and do not require further discussion with the healthcare provider in this context.
Which of the following types of dressing changes works as a form of wound debridement?
- A. Dry dressing
- B. Transparent dressing
- C. Composite dressing
- D. Wet to dry dressing
Correct Answer: D
Rationale: The correct answer is 'Wet to dry dressing.' Wet to dry dressing is a method of wound debridement that involves applying sterile soaked gauze to the wound, allowing it to dry and stick to the wound. When the dressing is removed, it pulls away drainage and debris, aiding in wound debridement. Choice A, 'Dry dressing,' does not actively assist in debridement as it does not collect or remove debris from the wound. Choice B, 'Transparent dressing,' is primarily used for maintaining a moist environment and wound observation, not for debridement. Choice C, 'Composite dressing,' combines multiple layers for different wound care purposes but is not specifically designed for debridement like wet to dry dressing.