Peaked T waves on telemetry indicate early stage myocardial infarction.The nurse should assess this patient first, check telemetry leads, perform a 12-lead EKG, and notify the provider. Prompt recognition and diagnosis of in-hospital myocardial infarction is crucial in reducing patient mortality. A patient with end-stage lung cancer may not be capable of normal oxygen saturation levels, and a level of 88% does not indicate imminent mortality. A dehydrated adult seeking treatment would likely exhibit tachycardia as the body attempts to compensate for the decrease in circulating volume; a heart rate of 115 bpm in this patient does not require immediate intervention to prevent death. A heart rate between 60 and 140 bpm is normal for an awake six-year-old and does not require intervention.