The nurse is caring for a client with a Sengstaken-Blakemore tube in place. If the client becomes increasingly restless, the nurse should:

Correct Answer: B

Rationale: Checking pulse oximetry in a restless client with a Sengstaken-Blakemore tube assesses hypoxia, a common distress cause deflating the balloon risks bleeding, suction changes are unguided, and sedation masks symptoms. Nurses prioritize oxygenation, ensuring airway safety, critical during esophageal varices management.

Correct Answer: A

Rationale: Blindness in India has multiple causes, but cataracts dominate due to aging and limited surgical access. Cataracts (choice A) cloud the lens, causing reversible blindness if treated, and account for over 60% of cases per surveys like the National Blindness Registry. Trachoma (choice B), a bacterial infection, is less prevalent now due to improved sanitation. Refractive errors (choice C), like myopia, are common but correctable with glasses, not a leading cause of permanent blindness. Vitamin A deficiency (choice D) causes blindness in children (xerophthalmia) but is rarer in adults. A is correct, as cataracts' high incidence and treatability make them the top focus of public health efforts. Nurses assist in screening, preoperative care, and post-surgical follow-up, critical for reducing this preventable burden.

Correct Answer: A

Rationale: In obstetrics, the denominator is the fetal part defining presentation. In breech (buttocks down), the sacrum (choice A) is the reference point, determining positions (e.g., sacroanterior). Femur (choice B), shoulder (choice C), or leg (choice D) aren't denominators; legs vary in flexed/extended breech but don't define it. A is correct, per standard fetal positioning. Nurses monitor breech risks (e.g., cord prolapse), assist in version or cesarean planning, and support safe delivery.

Correct Answer: C

Rationale: Splenectomy removes the spleen, increasing risks. Cholecystitis (choice A), appendicitis (choice B), and gastritis (choice D) aren't directly linked. Pancreatitis (choice C) can occur, especially if surgery (e.g., for trauma) damages the pancreas, a nearby organ. C is correct, a known risk. Nurses monitor for abdominal pain, fever, and enzyme levels, managing this potential post-op issue.

Correct Answer: A

Rationale: A therapeutic relationship (A) aims to help the client physically and emotionally, focusing on their health needs, not friendship (B), which blurs professional boundaries. Goals are collaborative, not solely nurse-set (C), ensuring client involvement. It ends when help isn't needed (D), maintaining professionalism. A reflects the nurse-client dynamic's purpose holistic care supported by nursing theory (e.g., Peplau), making it the true statement.