A nurse is planning care for a client following a cardiac catheterization accessed through his femoral artery. Which of the following actions should the nurse plan to take?

Instruct the client to perform range-of-motion exercises to his lower extremities.

Restrict the client's ﬂuid intake.

Perform neurovascular checks with vital signs.

Ambulate the client 1 hr following the procedure.

Answer and Explanation

The Correct Answer is C

Performing neurovascular checks with vital signs is an important action to take following a cardiac catheterization accessed through the femoral artery, as it can help monitor for complications such as bleeding, hematoma, infection, thrombosis, or embolism. The nurse should assess the color, temperature, sensation, movement, and pulses of the aﬀected leg, as well as the blood pressure, heart rate, and oxygen saturation of the client.

Instructing the client to perform range-of-motion exercises to his lower extremities is not appropriate, as it can increase the risk of bleeding or dislodging the arterial sheath or closure device. The client should keep the aﬀected leg straight and avoid bending or lifting it for several hours after the procedure, or as directed by the provider.

Restricting the client's ﬂuid intake is not necessary, as ﬂuid intake can help prevent dehydration and contrast- induced nephropathy following a cardiac catheterization. The client should be encouraged to drink ﬂuids, unless contraindicated.

d Ambulating the client 1 hr following the procedure is not advisable, as it can cause bleeding, hematoma, or vascular injury. The client should remain on bed rest for 2 to 6 hours after the procedure, or as directed by the provider, and resume ambulation gradually and with assistance.

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Correct Answer is D

Explanation

Taking one tablet at the first indication of chest pain is the correct way to use SL nitroglycerin tablets, as they are fast- acting and can relieve anginal symptoms within minutes. The client should place the tablet under the tongue and let it dissolve.

Taking this medication after each meal and at bedtime is not appropriate, as SL nitroglycerin tablets are not meant for routine or prophylactic use, but only for acute episodes of angina.

Taking one tablet every 15 min during an acute attack is not correct, as the client should not exceed three doses in 15 min. If the pain is not relieved after three doses, the client should seek emergency medical attention.

Taking this medication with 8 ounces of water is not necessary, as SL nitroglycerin tablets do not need to be swallowed or washed down with water. They should be dissolved under the tongue for optimal absorption.

A. Slow repolarization of ventricular Purkinje fibers B. Atrial depolarization C. Early ventricular repolarization D. Ventricular depolarization

Correct Answer is B

Explanation

The P wave is the first wave on the ECG strip and represents the electrical activity of the atria. It reﬂects the depolarization of the atrial myocardium, which is the process of changing the electrical charge of the cardiac cells from negative to positive, triggering a contraction. The P wave precedes the QRS complex, which represents ventricular depolarization, and the T wave, which represents ventricular repolarization.

The other options are not correct because:

a. Slow repolarization of ventricular Purkinje fibers. This statement is incorrect because it describes the U wave, which is a small and sometimes invisible wave that follows the T wave on the ECG strip. It reﬂects the repolarization of the ventricular Purkinje fibers, which are specialized cardiac cells that conduct electrical impulses to the ventricles. The U wave is more prominent in conditions that cause hypokalemia, such as diuretic use or vomiting.

c. Early ventricular repolarization. This statement is incorrect because it describes the ST segment, which is the ﬂat line between the QRS complex and the T wave on the ECG strip. It reﬂects the early phase of ventricular repolarization, which is the process of restoring the electrical charge of the cardiac cells to negative after a contraction. The ST segment can be elevated or depressed in conditions that cause myocardial ischemia or injury, such as angina or myocardial infarction.

d. Ventricular depolarization. This statement is incorrect because it describes the QRS complex, which is the largest and most visible wave on the ECG strip. It reﬂects the depolarization of the ventricular myocardium, which triggers a ventricular contraction. The QRS complex follows the P wave and precedes the T wave on the ECG strip.

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A nurse is planning care for a client following a cardiac catheterization accessed through his femoral artery. Which of the following actions should the nurse plan to take?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is teaching a client who has angina pectoris about starting therapy with SL nitroglycerin tablets. The nurse should include which of the following instructions regarding how to take the medication?

Correct Answer is D

Explanation

A nurse is interpreting the ECG strip of a client who has bradycardia. Which of the following cardiac components should the nurse identify as the role of the P wave?

Correct Answer is B

Explanation

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