A nurse at an ophthalmology clinic is providing teaching to a client who has open-angle glaucoma and a new treatment regimen of timolol and pilocarpine eye drops. Which of the following instructions should the nurse provide?
Administer the medications 5 minutes apart.
Hold pressure on the conjunctival sac for 2 minutes following application of drops.
It is not necessary to remove contact lenses before administering medications.
Administer the medications by touching the tip of the dropper to the sclera of the eye.
The Correct Answer is A
Choice A: Administer the Medications 5 Minutes Apart
Administering the medications 5 minutes apart is crucial when using multiple eye drops. This practice ensures that each medication has enough time to be absorbed without being washed out by the subsequent drop. This is particularly important for medications like timolol and pilocarpine, which are used to manage intraocular pressure in glaucoma.
Choice B: Hold Pressure on the Conjunctival Sac for 2 Minutes Following Application of Drops
Holding pressure on the conjunctival sac (punctal occlusion) for 2 minutes after applying eye drops can help reduce systemic absorption and increase the local effect of the medication. However, this instruction is not as critical as the timing between administering different eye drops.
Choice C: It Is Not Necessary to Remove Contact Lenses Before Administering Medications
This statement is incorrect. Contact lenses should be removed before administering eye drops to prevent contamination and ensure proper absorption of the medication. The lenses can be reinserted after a sufficient amount of time has passed, usually around 15 minutes.
Choice D: Administer the Medications by Touching the Tip of the Dropper to the Sclera of the Eye
This statement is incorrect. The tip of the dropper should never touch the eye or any other surface to avoid contamination. The correct method is to hold the dropper above the eye and squeeze out the prescribed number of drops into the conjunctival sac.
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Correct Answer is C
Explanation
Choice A reason: Purple striations:
Purple striations, or stretch marks, are more commonly associated with Cushing’s syndrome, which involves excess cortisol production. Addison’s disease, on the other hand, is characterized by insufficient cortisol and aldosterone production.
Choice B reason: Hirsutism:
Hirsutism refers to excessive hair growth in women in areas where hair is normally minimal or absent. It is not typically associated with Addison’s disease. Hirsutism is more commonly linked to conditions involving excess androgens, such as polycystic ovary syndrome (PCOS).
Choice C reason: Hyperpigmentation:
Hyperpigmentation, or darkening of the skin, is a hallmark symptom of Addison’s disease. This occurs due to increased production of melanocyte-stimulating hormone (MSH) as a byproduct of elevated adrenocorticotropic hormone (ACTH) levels. The skin changes are often most noticeable in areas exposed to friction, such as the elbows, knees, and knuckles.
Choice D reason: Intention tremors:
Intention tremors, which occur during purposeful movement, are not typically associated with Addison’s disease. These tremors are more commonly seen in neurological conditions such as multiple sclerosis or cerebellar disorders.
Correct Answer is A
Explanation
Choice A: Obtain a 12-lead ECG
Obtaining a 12-lead ECG is a critical action when a client has a potassium level of 6.8 mEq/L, which indicates hyperkalemia. Hyperkalemia can cause serious cardiac dysrhythmias, including life-threatening arrhythmias such as ventricular fibrillation or asystole. An ECG can help detect these abnormalities early, allowing for prompt intervention to prevent cardiac complications. The ECG may show characteristic changes such as peaked T waves, widened QRS complexes, and prolonged PR intervals, which are indicative of hyperkalemia.
Choice B: Suggest that the client use a salt substitute
Suggesting that the client use a salt substitute is not appropriate in this situation. Many salt substitutes contain potassium chloride, which can further increase the potassium level in the blood. For a client with hyperkalemia, it is crucial to avoid additional sources of potassium to prevent exacerbating the condition. Therefore, recommending a salt substitute could be harmful.
Choice C: Advise the client to add citrus juices and bananas to her diet
Advising the client to add citrus juices and bananas to her diet is also inappropriate. Both citrus juices and bananas are high in potassium and can contribute to an increase in serum potassium levels. For a client with hyperkalemia, it is essential to limit dietary potassium intake to help lower the potassium levels in the blood. Encouraging the consumption of high-potassium foods would be counterproductive and potentially dangerous.
Choice D: Obtain a blood sample for a serum sodium level
While obtaining a blood sample for a serum sodium level can be part of a comprehensive assessment, it is not the immediate priority in managing hyperkalemia. The primary concern with a potassium level of 6.8 mEq/L is the risk of cardiac dysrhythmias. Therefore, obtaining an ECG to monitor the heart’s electrical activity is the most urgent and appropriate action. Once the immediate risk is addressed, further laboratory tests, including serum sodium levels, can be conducted as part of the overall assessment and management plan.