What is the role of telemetry monitoring after CABG?

• A. To observe for dysrhythmias and other complications
• B. To measure blood glucose continuously
• C. To monitor kidney function exclusively
• D. To assess cognitive function

Answer: (B)

Telemetry after CABG is used to continuously monitor the heart’s electrical activity so rhythm disturbances and other immediate cardiac complications can be detected right away. After surgery the heart is irritated and electrolytes can be off, making dysrhythmias like atrial fibrillation, ventricular arrhythmias, or conduction blocks more likely. Spotting these early allows rapid interventions—controlling rate or restoring rhythm, temporary pacing if needed, adjusting meds, or correcting electrolyte imbalances. Telemetry can also alert clinicians to ischemic changes or evolving myocardial injury alongside the patient’s hemodynamics. It isn’t used to monitor blood glucose, kidney function, or cognitive status, which require different assessments and tests.