A client who receives multiple antihypertensive medications experiences syncope due to a drop in blood pressure to 70/40 mm Hg. Which is the rationale for the nurse's decision to hold the client's scheduled antihypertensive medications?

Choice A reason: This is not an assessment finding that warrants immediate intervention by the nurse. Blood pressure 100/78 mm Hg is within the normal range for an adult, and it does not indicate any adverse effect of phenytoin. The nurse should monitor the blood pressure for any changes, but it is not a priority.

Choice B reason: This is an assessment finding that warrants immediate intervention by the nurse. Double vision, or diplopia, is a sign of phenytoin toxicity, which can occur due to overdose, drug interactions, or impaired metabolism. Double vision can impair the client's vision, balance, and coordination, and increase the risk of falls and injuries. The nurse should stop the phenytoin infusion, if applicable, and notify the healthcare provider. The nurse should also check the serum phenytoin level and other vital signs, and prepare to administer an antidote, such as fosphenytoin, if indicated.

Choice C reason: This is not an assessment finding that warrants immediate intervention by the nurse. Puffy, bleeding gums are a common side effect of phenytoin, which can cause gingival hyperplasia, or overgrowth of the gum tissue. Puffy, bleeding gums are not life-threatening, but they can affect the client's oral hygiene and appearance. The nurse should instruct the client to brush and floss the teeth regularly, and to visit a dentist for dental care.

Choice D reason: This is not an assessment finding that warrants immediate intervention by the nurse. Chronic insomnia is not a common or serious side effect of phenytoin, which is an anticonvulsant that can have sedative effects. Chronic insomnia may be caused by other factors, such as stress, pain, or caffeine intake. The nurse should assess the client's sleep pattern and quality, and provide education and counseling on sleep hygiene and relaxation techniques.

Choice A reason: Using the eye drops until the excess pressure is reduced is not an accurate response, as it implies that the eye drops are only a temporary treatment. Open-angle glaucoma is a chronic condition that causes increased pressure in the eye due to impaired drainage of the aqueous humor. The eye drops are used to lower the eye pressure and prevent further damage to the optic nerve. The client will need to use the eye drops for the rest of their life, unless the healthcare provider advises otherwise.

Choice B reason: Using the eye drops for long-term control of pain and swelling is not an accurate response, as it does not address the main goal of the treatment. Open-angle glaucoma does not usually cause pain or swelling, as the pressure builds up gradually and painlessly. The eye drops are used to lower the eye pressure and prevent vision loss, not to relieve inflammation or discomfort.

Choice C reason: Using the eye drops until a smaller angle can be restored is not an accurate response, as it confuses open-angle glaucoma with closed-angle glaucoma. Open-angle glaucoma is characterized by a wide and open angle between the iris and the cornea, which allows the aqueous humor to flow freely. Closed-angle glaucoma is characterized by a narrow or closed angle that blocks the drainage of the aqueous humor. The eye drops are used to lower the eye pressure and prevent further damage to the optic nerve, not to change the angle of the eye.

Choice D reason: Using the eye drops for long-term control of normal eye pressure is the most accurate response, as it reflects the purpose and duration of the treatment. Open-angle glaucoma is a chronic condition that requires lifelong management. The eye drops are used to lower the eye pressure and prevent vision loss, which can occur if the pressure is too high for too long. The client should use the eye drops as prescribed and follow up with the healthcare provider regularly.