Final Answer:
Atropine (Drug B) is contraindicated for the patient presenting symptoms of open-angle glaucoma, such as colored halos and headaches in bright light, due to its potential to exacerbate the condition by causing pupil dilation and increasing intraocular pressure.(Option 2)
Step-by-step explanation:
In open-angle glaucoma, medications that dilate the pupil, such as Atropine (Drug B), are contraindicated due to their potential to exacerbate the condition. Atropine, an anticholinergic agent, causes pupil dilation by blocking the parasympathetic nervous system, which can worsen the angle closure in glaucoma, leading to increased intraocular pressure.(Option 2)
Colored halos and headaches in bright light are indicative of increased intraocular pressure, a common symptom in glaucoma. Medications that induce pupil dilation, like Atropine, can further compromise the outflow of aqueous humor from the eye, exacerbating the symptoms and potentially causing harm by worsening the condition.
Conversely, medications like Timolol (Drug C) and Latanoprost (Drug D) are commonly used to treat open-angle glaucoma by reducing intraocular pressure. Timolol is a beta-blocker that decreases aqueous humor production, while Latanoprost is a prostaglandin analogue that increases aqueous humor outflow. These medications help manage glaucoma symptoms by regulating intraocular pressure without exacerbating the condition.
Here is complete question;
"Pt presents with symptoms of open angle glaucoma, she sees colored halos and headaches in bright light. Which drug is contraindicated?
1) Drug A (e.g., Diphenhydramine)
2) Drug B (e.g., Atropine)
3) Drug C (e.g., Timolol)
4) Drug D (e.g., Latanoprost)"