Correct Answer: B

Rationale: Gingival hyperplasia, or overgrowth of the gums, is a common side effect of phenytoin. Patients should maintain good oral hygiene to minimize this effect.

Correct Answer: C

Rationale: Insulin glargine is classified as a long-acting insulin. It is designed to provide a consistent level of insulin over approximately 24 hours, helping to keep blood glucose levels stable throughout the day. This long duration of action makes it suitable for basal insulin replacement in patients with type 1 diabetes, providing a background level of insulin to mimic the body's natural release of insulin between meals and overnight.

Correct Answer: C

Rationale: Omeprazole should be taken before meals to reduce stomach acid production and promote healing of the ulcer. Taking it before meals ensures that the medication can inhibit acid secretion when the stomach is most active in producing acid, thereby maximizing its effectiveness in treating peptic ulcer disease.

Correct Answer: C

Rationale: The absence of hair growth on the legs in a client with diabetes mellitus can be indicative of poor circulation due to compromised blood flow. Assessing the appearance of the skin on the client's legs is crucial as it can reveal additional signs of impaired circulation, such as changes in color, temperature, and the presence of ulcers or wounds. This information aids in the comprehensive evaluation of the client's vascular status and guides appropriate interventions to prevent potential complications.

Correct Answer: A

Rationale: Timolol eye drops are prescribed to reduce intraocular pressure in patients with glaucoma. By decreasing the pressure within the eye, timolol helps prevent damage to the optic nerve, which is crucial in managing glaucoma and preserving vision. Dilating or constricting the pupils or enhancing tear production are not the primary actions of timolol eye drops.