Mr. Smith is scheduled for an implantable cardioverter defibrillator (ICD) procedure to treat dysrhythmia.
What is the primary function of this procedure?

Rationale for Choice A:

Monitoring the insertion site for hematoma and bleeding is crucial following cardiac angiogram with stent placement. Here's a detailed explanation:

Vascular Injury: The procedure involves accessing a major artery, usually the femoral artery in the groin. This creates a risk of bleeding or hematoma formation at the puncture site.

Anticoagulation: Patients often receive anticoagulant medications during and after the procedure to prevent blood clots from forming around the stent. These medications can increase the risk of bleeding.

Early Detection and Intervention: Prompt identification of bleeding or hematoma formation is essential to prevent complications such as hypotension, shock, or compartment syndrome.

Assessment: Regular assessment of the insertion site includes:

Visual inspection for swelling, bruising, or active bleeding.

Palpation for tenderness, firmness, or expanding hematoma.

Monitoring vital signs for tachycardia, hypotension, or signs of shock.

Interventions: If bleeding or hematoma is detected:

Apply direct pressure to the site.

Notify the healthcare provider immediately.

Implement additional measures as prescribed, such as reversal of anticoagulation or surgical intervention.

Rationale for Choice B:

Maintaining strict bedrest after cardiac angiogram with stent placement is no longer routinely recommended. Here's why:

Early Ambulation Benefits: Research has shown that early ambulation (usually within 6-8 hours) is associated with several benefits, including:

Reduced risk of deep vein thrombosis (DVT)

Improved circulation

Quicker recovery

Shorter hospital stays

Individualized Assessment: The decision regarding ambulation timing should be individualized based on patient factors such as:

Bleeding risk

Procedural complications

Overall health status

Comfort level

Balanced Approach: While early ambulation is encouraged, it's important to balance activity with rest to promote healing and prevent complications.

Rationale for Choice C:

Monitoring for dysrhythmias is essential following cardiac angiogram with stent placement due to several reasons:

Cardiac Irritation: The procedure involves manipulation of catheters and devices within the heart, which can potentially irritate the heart's electrical system.

Electrolyte Imbalances: Contrast dye used during the procedure can cause electrolyte imbalances, which can also trigger dysrhythmias.

Underlying Heart Disease: Patients undergoing angioplasty often have underlying heart disease, which already predisposes them to rhythm disturbances.

Early Detection and Intervention: Prompt identification of dysrhythmias allows for timely interventions to prevent hemodynamic instability, heart failure, or cardiac arrest.

Continuous Monitoring: Continuous ECG monitoring is typically used to detect dysrhythmias, and patients are closely observed for symptoms such as palpitations, lightheadedness, or chest pain.

Rationale for Choice D:

Assessing heart sounds is a crucial nursing intervention following cardiac angiogram with stent placement. Here's why:

Stent Placement Effects: The placement of a stent can alter blood flow patterns within the coronary arteries, which may be audible as changes in heart sounds.

Complication Detection: Heart sounds can provide valuable clues about potential complications such as:

Pericardial effusion (fluid around the heart)

Myocardial infarction (heart attack)

Valvular dysfunction

Baseline Assessment: It's important to establish a baseline assessment of heart sounds prior to the procedure to compare with post-procedure findings.

Regular Auscultation: Regular auscultation of heart sounds should be performed to monitor for changes and promptly report any concerns to the healthcare provider.

Choice A rationale:

The T wave specifically represents ventricular repolarization, which is the phase of the cardiac cycle when the ventricles return to their resting state after contraction. This is in contrast to the other waves on the ECG, which represent different phases of the cardiac cycle:

The P wave represents atrial depolarization, or the contraction of the atria.

The QRS complex represents ventricular depolarization, or the contraction of the ventricles.

The U wave, while less commonly seen, is thought to represent repolarization of the Purkinje fibers, which are specialized fibers that conduct electrical impulses through the ventricles.

The T wave is typically a smooth, rounded wave that follows the QRS complex. It is usually upright in most leads, but it can be inverted in certain leads, such as aVR.

The shape and duration of the T wave can provide important information about the health of the ventricles. For example, a flattened or inverted T wave can be a sign of myocardial ischemia (reduced blood flow to the heart muscle) or other heart problems.

It is important to note that the T wave does not represent the absolute resting state of the heart, as there is always some electrical activity occurring in the heart muscle. However, it is the closest representation of the resting state that is seen on the ECG.