Correct Answer: D

Rationale: An incentive spirometer is a device used to improve lung function and reduce the risk of atelectasis. The correct way to use the spirometer is by sitting up and taking slow, deep breaths to achieve the set goal, not by lying back in a reclining position or taking rapid, quick breaths. Setting a goal of using the spirometer multiple times a day is beneficial, but it is not the best indicator of correct teaching. After using the spirometer, the client should practice coughing to help clear any loosened secretions that may have occurred during the breathing exercises.

Correct Answer: A

Rationale: The correct answer is ''I'm going to limit my meals to 2-3 per day to reduce acid secretion.'' This statement indicates a need for more teaching because large meals increase the volume and pressure in the stomach, delaying gastric emptying, and worsening symptoms of Gastroesophageal Reflux Disease (GERD). The recommended approach is to eat smaller, more frequent meals (4-6 small meals a day) to reduce acid reflux. Choices B, C, and D demonstrate good understanding of GERD management by highlighting the importance of staying upright after meals, avoiding trigger foods like tea, coffee, and chocolate, and addressing weight management, which are all appropriate strategies to manage GERD symptoms.

Correct Answer: A

Rationale: Melena is the passage of black, tarry stools due to the presence of blood in the gastrointestinal tract, usually originating from the upper digestive system. In the context of a Duodenal Ulcer, melena can occur as a result of bleeding in the duodenum or the upper part of the small intestine. This finding is significant as it indicates potential gastrointestinal bleeding, which is a common complication of duodenal ulcers. Nausea (Choice B) is a nonspecific symptom that may be present with various gastrointestinal conditions but is not specific to duodenal ulcers. Hernia (Choice C) involves the protrusion of an organ through the wall of the cavity that normally contains it and is not directly related to the symptoms of a duodenal ulcer. Hyperthermia (Choice D), which refers to an elevated body temperature, is not typically associated with duodenal ulcers unless there are severe complications present.

Correct Answer: C

Rationale: Necrotizing enterocolitis (NEC) is a serious condition characterized by ischemic bowel, leading to gastrointestinal symptoms, lethargy, poor feeding, and respiratory distress. In the management of NEC, it is crucial to stop oral feedings, insert a nasogastric tube for decompression, and administer antibiotics as prescribed by the physician. Therefore, the most appropriate nursing intervention for an infant with NEC is to administer antibiotics as ordered. Choice A, feeding the infant sterile water, is incorrect because oral feedings should be stopped in NEC. Choice B, positioning the infant on his back, is not directly related to the treatment of NEC. Choice D, allowing the infant to breastfeed, is contraindicated in NEC as oral feedings should be ceased to prevent further complications.

Correct Answer: A

Rationale: In developmental dysplasia of the hip (DDH), one of the key findings is unequal leg length. This occurs due to the dislocation of the hip joint, where the ball is loose in the socket. Limited adduction, the inability to bring the hip and knee towards the midline of the body, is also a common finding in DDH. Diminished femoral pulses are not typically associated with DDH, as it primarily affects the skeletal structure rather than vascular supply. Symmetrical gluteal folds are normal in infants and do not indicate DDH, as asymmetry in gluteal folds can be a sign of hip dislocation.