Exam 49: Electrocardiography and Pulmonary Function Testing

If a lead does not appear on an ECG tracing, what step should be taken before repeating the tracing?

Which of the following is a correct statement about the stylus temperature control?

The ____ send(s) out electrical impulses to initiate depolarization.

Pulse oximetry can be used to help diagnose ________, in which breathing pauses during sleep.

The time it takes for electrical impulses to travel from the SA node to the AV node is the ____.

-You are attempting to record an ECG for Mr. Potter, a 72-year-old patient who has Parkinson's disease. Knowing this, you automatically place the limb electrodes close to the trunk. However, the tracing looks as shown in the picture. What artifact is present and what can you do to fix it?

If the patient has good control of her asthma, her peak flow rate is in the ____,

-After preparing the ECG machine, you explained the procedure to Mrs. Thomas, connected the electrodes, and began the tracing, as shown in the picture. You rechecked the electrodes and they are all placed correctly. None of the wires are loose. However, you notice that Mrs. Thomas's skin smells fragrant, as though she has used a body lotion recently. Which of the following describes the problem, its possible cause, and the correct solution?

Which of the following would you include in patient preparation for a pulmonary function test?

Which of the following measures and evaluates a patient's lung capacity and volume?

Which of the following is the electrical impulse that initiates a chain reaction resulting in contraction?

-The arrhythmia pictured here is ____.

A pulse oximeter reading of less than 95% indicates low blood oxygen, or ________.

Which of the following is a record of the waves of electrical impulses responsible for the cardiac cycle?

Electrodes for limb leads should be attached to ____.

Which precordial electrode is placed in the fifth intercostal space, directly below the middle of the armpit?

The _________ is a pen-like instrument that records the electrical impulses on the ECG paper.

The artifact pictured here is ________.

An instrument used to measure the air taken in by and expelled from the lungs is the ____.

The process of using ultrasound to view the heart in motion is called ________.