Exam 6: Patient Monitoring Technology

A 45-year-old man is alert and oriented, complaining of chest pain. He describes a two-day history of worsening pain, described as a burning sensation below his left breast that radiates across his chest. He states that the pain seems to get better right after eating, but then worsens again. Medical history includes myocardial infarction, hypertension, and type 2 diabetes. His medications include Inderal, Vasotech, Glucotrol, and Lopid. Physical examination reveals cool, dry skin; clear lungs; and no JVD or peripheral edema. HR = 102, BP = 132/86, RR = 12, SaO₂ = 98%. The patient is on oxygen by nasal cannula at 4 liters per minute. Which of the following should be done next?

Artifacts such as muscle tremors can make assessment of cardiac rhythm difficult because:

Most carbon dioxide from cellular metabolism reaches the alveoli by being transported:

The anterior surface of the heart is best viewed by ECG leads:

Conditions that can cause an inaccurate pule oximetry ready include all EXCEPT?

Your patient is a 73-year-old man who is sitting in a recliner, cyanotic, pulseless, and apneic. The patient's skin is cool and dry. The patient's wife last saw him an hour and a half ago. Which of the following should you do first?

Which of the following is LEAST urgent when evaluating a patient suspected of suffering an acute myocardial infarction?

The QRS complex represents:

You have applied a CO-oximeter to your patient, and it is displaying an SpCO of 15 percent. Which of the following is the most appropriate interpretation of this finding?

A patient who has SpMet readings of 40 percent would be expected to have signs and symptoms of methemoglobinemia, such as:

An arterial blood gas analysis includes all of the following EXCEPT:

The total duration of ventricular depolarization is represented by the ________ on the ECG.

Ventricular repolarization of the myocardium is represented by the:

Your patient is a 62-year-old woman with a history of COPD. She is slightly more short of breath than usual today. She is alert and speaks three to four words between breaths. Her SpO₂ is 93 percent on room air. Which of the following devices should be used for the administration of oxygen to this patient?

An action potential begins in a myocardial cell when ________ enters the cell, giving it a ________ charge.

The middle tissue layer of the heart is the:

Which of the following cells released from the islets of Langerhans produce insulin, which decreases the blood glucose levels?

Which of the following statements about pulse oximetry is FALSE?

A male patient with an acute exacerbation of his emphysema presents in severe distress with decreased air movement and diffuse inspiratory wheezes in all fields. HR = 132, BP = 142/88, RR =30, SaO₂ = 88%. Which of the following blood gas values is most likely?

Which of the following is NOT analyzed in arterial blood gas tests?