A nurse is assessing a client who has heart failure and a new prescription for metoprolol. Which of the following findings should the nurse identify as an adverse effect of the medication?

Choice A reason : Muscle twitching can be indicative of hypocalcemia, a common and serious complication following a complete thyroidectomy due to potential damage or removal of the parathyroid glands. Hypocalcemia requires immediate intervention to prevent more severe symptoms such as tetany or cardiac complications.

Choice B reason : While nausea is a common postoperative symptom, it is not typically as urgent as signs of hypocalcemia. However, persistent nausea should still be addressed as it can affect the client's comfort and nutritional intake.

Choice C reason : Serosanguineous drainage is expected to some extent after surgery, but if it is excessive or changes in character, it may indicate hemorrhage or infection, which would then become a priority.

Choice D reason : Incisional pain is also expected postoperatively. While pain management is important for recovery, it is not as immediately concerning as potential hypocalcemia unless the pain is severe or uncontrolled, suggesting complications.

Choice A reason: Ocular irrigation should be performed from the inner corner (near the nose) toward the outer corner to avoid contaminating the other eye and to ensure that the flushing fluid and any chemical residue flow away from the unaffected eye. This method helps to minimize the risk of spreading the chemical to the other eye and allows for a more effective removal of the chemical from the affected eye.

Choice B reason: While positioning the client upright is correct, having the head turned toward the right side is not specifically recommended. The client should be positioned in a way that facilitates the flow of the irrigation fluid away from the unaffected eye, which typically means tilting the head to the side of the affected eye.

Choice C reason: Placing a strip of pH paper under the upper lid of the affected eye is done to measure the pH of the tear film and determine the acidity or alkalinity of the chemical involved. However, this is not an immediate action during the initial irrigation process. The first priority is to dilute and remove the chemical from the eye as quickly as possible.

Choice D reason: While sterile water can be used for ocular irrigation, it is not the first choice. The preferred solution for ocular irrigation is a saline solution or specific eye irrigating solutions because they are isotonic and less irritating to the eye tissues. Sterile water may cause discomfort due to its hypotonicity, which can lead to cellular swelling.