A nurse is reviewing a client's ECG rhythm strip. Which of the following components should the nurse use to measure impulse conduction from the sinus node through the atrioventricular node?

A. Lie down when taking the medication: Sublingual nitroglycerin causes vasodilation, which can lower blood pressure and potentially cause dizziness or fainting. The client should lie down or sit in a comfortable position to minimize the risk of falls or injury.

B. Chew the medication thoroughly: Sublingual nitroglycerin should be placed under the tongue and allowed to dissolve completely, not chewed. Chewing may affect the absorption and effectiveness of the medication.

C. Store the medication in the refrigerator: Sublingual nitroglycerin should be stored at room temperature, away from moisture and heat, not in the refrigerator. Cold storage could reduce the medication's effectiveness.

D. Check the expiration date on the medication every 6 months: While it is important to check the expiration date, every 6 months is not sufficient. The client should check the expiration date more frequently (e.g., every 3 months) and replace the medication if expired to ensure it is effective when needed.

A. Bilateral coarse, crackle breath sounds: These are common findings in pulmonary edema due to fluid accumulation in the lungs. Furosemide, a diuretic, helps reduce fluid overload, making it an appropriate medication to help improve these symptoms by promoting diuresis.

B. Vesicular breath sounds over the peripheral lung fields: Vesicular breath sounds are normal, and do not indicate the need for diuretics. The prescription for furosemide would be more appropriate if the client had signs of fluid overload, such as crackles.

C. Potassium 3.2 mEq/L (3.5 mEq/L to 5.0 mEq/L): This indicates hypokalemia. Since furosemide can cause potassium depletion, the nurse should verify the prescription and monitor the client’s potassium levels closely, as additional supplementation may be needed.

D. Blood pressure 100/70 mm Hg: This blood pressure is on the lower side of normal. While furosemide can lower blood pressure, this finding alone doesn't specifically indicate that the pulmonary edema is being effectively treated.