A nurse is teaching a client who has angina about a new prescription for sublingual nitroglycerin tablets. Which of the following instructions should the nurse include in the teaching?
A.
“Keep the tablets at room temperature in their original glass bottle.”
B.
“Discard any tablets you do not use every 6 months.”
C.
“Take one tablet each morning 30 minutes prior to eating.”
D.
“Place the tablet between your cheek and gum to dissolve
The Correct Answer and Explanation is:
The correct answer is:
A. “Keep the tablets at room temperature in their original glass bottle.”
Explanation
Sublingual nitroglycerin tablets are used to relieve angina (chest pain) by dilating the blood vessels and improving blood flow to the heart. Proper storage and usage of these tablets are crucial for their effectiveness and safety.
Storage Instructions: Nitroglycerin tablets should be kept at room temperature, away from excessive heat and moisture. The tablets are sensitive to light and air, which is why they are packaged in an original glass bottle. The glass bottle helps protect the tablets from light and air, which can degrade the medication. Keeping them at room temperature ensures they remain effective.
Discarding Old Tablets: Nitroglycerin tablets lose potency over time, and it is generally recommended to discard any unused tablets after 6 months. This is because the tablets can deteriorate and become less effective. However, the specific timeframe for discarding should be confirmed with the manufacturer’s guidelines or a pharmacist.
Correct Administration: Sublingual nitroglycerin tablets should be taken at the onset of angina symptoms. The correct administration involves placing the tablet under the tongue, not between the cheek and gum. Placing the tablet under the tongue allows it to dissolve rapidly and be absorbed directly into the bloodstream through the mucous membranes, which provides quick relief from angina.
Daily Dosing: Nitroglycerin tablets are not intended for daily use at a fixed time, such as every morning. Instead, they are used on an as-needed basis when angina symptoms occur. Regular, scheduled dosing is not appropriate for sublingual nitroglycerin.
In summary, storing nitroglycerin tablets in their original glass bottle at room temperature helps maintain their potency. Discarding unused tablets after 6 months is a general guideline, but it’s best to confirm with a healthcare provider. Proper administration involves placing the tablet under the tongue, and they should be used as needed rather than on a regular schedule.