which response by the nurse best explains the purpose of ranitidine zantac for a patient admitted with bleeding esophageal varices

NCLEX-RN

NCLEX RN Exam Questions

1. 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.

2. When supporting the psychosocial needs of a client experiencing negative side effects associated with chemotherapy, which intervention is most appropriate?

A. Read the client's discharge instructions well in advance of dismissal
B. Provide medications to reduce nausea and vomiting
C. Give simple instructions about self-care while in the hospital
D. Determine the levels of support from significant others

Correct answer: D

Rationale: When a client is experiencing negative side effects associated with chemotherapy, addressing their psychosocial needs is crucial. One effective intervention is to determine the levels of support from significant others. This involves assessing the family, spouse, or friends who can provide help and support to the client when healthcare providers are not present. By identifying and organizing these resources, the nurse can help alleviate fears about the future, prepare caregivers for the client's needs, and facilitate a smoother transition for the client upon discharge. Reading discharge instructions, providing medications, or giving self-care instructions, although important, do not directly address the psychosocial needs of the client during this challenging time.

3. A nurse is caring for a patient admitted to the emergency room for an ischemic stroke with marked functional deficits. The physician is considering the use of fibrinolytic therapy with TPA (tissue plasminogen activator). Which history-gathering question would not be important for the nurse to ask?

A. What time did you first notice symptoms consistently appearing?
B. Have you been taking any blood thinners such as heparin, lovenox, or warfarin?
C. Have you had another stroke or head trauma in the previous 3 months?
D. Have you had any blood transfusions within the previous year?

Correct answer: D

Rationale: The correct answer is 'Have you had any blood transfusions within the previous year?' This question is not relevant in the context of considering fibrinolytic therapy with TPA for an ischemic stroke. Blood transfusions within the previous year do not directly impact the decision to use TPA in the treatment of an acute ischemic stroke. The focus should be on factors such as the time of symptom onset, current medications like blood thinners, and recent history of strokes or head trauma, as these are more directly related to the decision-making process for administering TPA in this emergency situation.

4. Which of these individuals would the nurse suspect as having the greatest risk of contracting Hepatitis B?

A. A sexually active 45-year-old man who has Type 1 Diabetes
B. A 75-year-old woman who lives in a crowded nursing home
C. A child who lives in a country with poor sanitation and hygiene standards
D. A sexually active 23-year-old man who works in a hospital

Correct answer: D

Rationale: The correct answer is a sexually active 23-year-old man who works in a hospital. This individual is at the highest risk of contracting Hepatitis B due to exposure in a healthcare setting where potential bloodborne pathogens are present. Being sexually active also increases the risk of transmission through sexual contact. Choice A, a 45-year-old man with Type 1 Diabetes, is not directly associated with an increased risk of Hepatitis B. Choice B, a 75-year-old woman living in a crowded nursing home, is at risk for other infections due to the living environment but not specifically for Hepatitis B. Choice C, a child in a country with poor sanitation, is more at risk for water or foodborne illnesses rather than Hepatitis B transmission.

5. Why is it important to genotype HCV before initiating drug therapy?

A. Side effects of nucleotide analogs
B. Measures for improving the appetite
C. Ways to increase activity and exercise
D. Administering alpha-interferon (Intron A)

Correct answer: B

Rationale: Genotyping of HCV plays a crucial role in managing treatment as it helps determine the most effective therapy for the specific viral strain. It allows healthcare providers to personalize treatment regimens and predict response rates. The statement about acute HCV infection converting to chronic state is accurate, highlighting the need for appropriate management. Immune globulin and vaccines are not available for HCV, and Ribavirin is commonly used for chronic HCV infection. Improving appetite is essential in liver health as adequate nutritional intake supports hepatocyte regeneration. Choices A, C, and D are incorrect as they do not address the specific importance of genotyping in HCV treatment or the significance of appetite improvement in liver function.