The nurse is attempting to determine the ventricular rate and rhythm of a patient's telemetry strip. What should the nurse examine to determine this part of the analysis?

A. "Only take one nitroglycerin tablet for each episode of angina."

This instruction is correct. Sublingual nitroglycerin is typically administered as needed for the relief of angina symptoms, with one tablet being the initial dose. If the chest pain persists after 5 minutes, the client may take a second tablet, and if needed, a third tablet after another 5 minutes. However, if the pain is not relieved after three tablets, they should seek immediate medical attention.

B. "Place the nitroglycerin tablet between cheek and gum."

This instruction is incorrect. Sublingual nitroglycerin tablets should be placed under the tongue, allowing them to dissolve and be absorbed directly into the bloodstream. Placing the tablet between the cheek and gum is not the recommended administration route for sublingual nitroglycerin.

C. "Call 911 if you develop a headache following nitroglycerin use."

This instruction is partially correct. Headache is a common side effect of nitroglycerin due to its vasodilatory effects. Clients should be informed about this potential side effect, but not every headache following nitroglycerin use requires immediate medical attention. However, if the headache is severe, persistent, or accompanied by other concerning symptoms, the client should seek medical evaluation.

D. "See if rest relieves the chest pain before using the nitroglycerin."

This instruction is incorrect. Sublingual nitroglycerin is a rapid-acting medication used to relieve angina symptoms quickly. Clients should not delay taking nitroglycerin and wait for rest to relieve chest pain, as this can lead to worsening symptoms and complications.

A. "I will wear layered clothing when walking outside in winter": This statement shows an understanding of the need to dress appropriately for weather conditions, which is important in managing symptoms during physical activity.

B. "I will walk early in the morning when it is hot outside": This statement indicates a lack of understanding regarding the ideal timing for outdoor activities, especially in hot weather. Exercising during the cooler parts of the day (such as early morning or late evening) is recommended to avoid heat-related stress and potential exacerbation of cardiovascular symptoms.

C. "If I get shortness of breath, I should slow down a bit": This statement demonstrates an understanding of monitoring symptoms during exercise and adjusting activity levels accordingly, which is an important aspect of managing coronary artery disease.

D. "My exercise intensity should not exceed my ability to talk": This statement reflects an understanding of the recommended exercise intensity level based on the ability to talk comfortably during physical activity, known as the "talk test."