A nurse is teaching participants at a community center about advance directives. Which of the following information should the nurse include in the teaching?

Choice A reason: Avoiding reading for 3 months is not a standard instruction post-retinal detachment surgery. Reading may be restricted temporarily (e.g., 1-2 weeks) if specific positioning is required, but 3 months is excessive. Patients are typically advised to avoid straining, not reading, making this instruction incorrect.
Choice B reason: Bending at the waist increases intraocular pressure, which can disrupt retinal repair and lead to re-detachment. Patients should bend at the knees to avoid straining the eye. This instruction is harmful and contraindicated, as it risks complications in the healing retina.
Choice C reason: Lifting objects up to 50 pounds is dangerous post-retinal surgery, as heavy lifting increases intraocular pressure, risking re-detachment. Guidelines typically restrict lifting to 10-20 pounds during recovery (4-6 weeks). This instruction is incorrect, as it poses a significant risk to surgical outcomes.
Choice D reason: Taking a stool softener daily prevents straining during bowel movements, which can increase intraocular pressure and disrupt retinal healing. Constipation is a concern post-surgery due to immobility or pain medications, and stool softeners ensure safe bowel movements, making this the correct instruction.

Choice A reason: Calcium gluconate IV reverses magnesium sulfate toxicity, which causes respiratory depression or arrhythmias due to excessive magnesium. Calcium restores neuromuscular and cardiac function by competing with magnesium, preventing life-threatening complications like respiratory arrest in preeclampsia management.
Choice B reason: Positioning supine is inappropriate, as it does not address magnesium toxicity and may worsen respiration in preeclampsia. Semi-Fowler’s position optimizes breathing, while toxicity requires pharmacological reversal with calcium gluconate, not positional changes, to manage life-threatening symptoms effectively.
Choice C reason: IV dextrose is irrelevant for magnesium toxicity, which affects neuromuscular function, not glucose levels. Dextrose treats hypoglycemia, not applicable here. Magnesium overdose requires calcium to counteract effects, making dextrose an ineffective intervention in preeclampsia-related toxicity management.
Choice D reason: Methylergonovine, a uterotonic, is contraindicated in preeclampsia, as it increases blood pressure, risking hypertensive crisis. It treats postpartum hemorrhage, not magnesium toxicity, which requires calcium gluconate to reverse neuromuscular depression, ensuring safety in preeclampsia management.