Correct Answer: C

Rationale: To assess the function of cranial nerve I (olfactory nerve), the nurse uses a wisp of cotton to test the sense of smell in a client who reports loss of smell. The nurse assesses the patency of the client's nostrils by occluding one nostril at a time and asking the client to sniff. Next, with the client's eyes closed, the nurse occludes one nostril and presents a non-noxious aromatic substance such as coffee, toothpaste, orange, vanilla, soap, or peppermint. Choice A, 'Coffee,' is incorrect because it is used to present non-noxious aromatic substances to assess cranial nerve I. Choice B, 'A tuning fork,' is used to assess the function of cranial nerve VIII (acoustic nerve). Choice D, 'An ophthalmoscope,' is used to assess the internal structures of the eye, not cranial nerve I.

Correct Answer: D

Rationale: The correct answer is 'Dysphagia.' Dysphagia is the term used to indicate difficulty swallowing, which can occur in disorders of the throat or esophagus. Anorexia refers to a loss of appetite, not difficulty swallowing. Eructation is the medical term for belching, not difficulty swallowing. Pyrosis is heartburn, a burning sensation in the esophagus and stomach caused by the reflux of gastric acid, not difficulty swallowing.

Correct Answer: B

Rationale: To calculate the correct dosage, first convert the client's weight from pounds to kilograms. As 1 kg = 2.2 pounds, 176 pounds ÷ 2.2 = 80 kg. The client should receive 0.2 units for every kilogram, which equals 16 units. Therefore, the total amount to prepare is 16 units x 100 units/mL = 1600 units. Considering the medication concentration of 100 units/mL, 1600 units ÷ 100 units/mL = 16 mL. However, since the question asks for the number of units, the final answer is 16 units x 2 injections = 32 units. Therefore, the LPN should prepare 32 units for administration.

Correct Answer: D

Rationale: To best listen to breath sounds, the nurse should have the client sit, leaning slightly forward, with arms resting comfortably across the lap. The client should be instructed to breathe through the mouth a little deeper than usual, but to stop if feeling dizzy. The nurse should hold the flat diaphragm end piece of the stethoscope firmly against the client's chest wall. It is crucial to listen for at least one full respiration in each location on the chest to assess breath sounds accurately. Side-to-side comparison is essential in breath sound assessment. Therefore, options A, B, and C are incorrect as they do not align with the correct procedure for listening to breath sounds.

Correct Answer: A

Rationale: Bowel sounds are high-pitched, gurgling, cascading sounds that occur irregularly between five and 30 times a minute. In this scenario, since the client ate lunch just 45 minutes ago, the nurse would expect to note gurgling sounds as normal bowel activity. Hypoactive sounds (low-pitched) or an absence of sounds are usually associated with conditions such as abdominal surgery or inflammation of the peritoneum, not with recent food intake. Therefore, the correct answer is gurgling sounds, indicating normal bowel activity following a recent meal.