Which of the following are common characteristics of a premature ventricular complex (PVC)?1. No P wave prior to the QRS complex2. Widened QRS complex3. Bizarre QRS complex4. Narrow QRS complex

Which of the following axis placements represents right-axis deviation?

Which of the following are considered bipolar leads?1. Lead I2. Lead II3. V24. aVF

What term is used to define the ability of certain cardiac cells to depolarize without stimulation?

Which of the following volumes or capacities can be measured by simple spirometry?1. Functional residual capacity (FRC)2. Expiratory reserve volume (ERV)3. Residual volume (RV)4. Inspiratory reserve volume (IRV)

You have just given your patient a 0.03 mg/ml dose of methacholine to assess for asthma. The subsequent forced vital capacity (FVC) shows no change. What should you do next?

Which of the following statements are true regarding measurement of the patient’s forced vital capacity (FVC)?1. The patient can be sitting or standing.2. Nose clips are not required.3. It is an effort-dependent test.4. Accurate results can be obtained without patient cooperation.

The pulmonary function technologist is performing a post bronchodilator spirometry test on a 70-years-old man. The patient completed the SVC capacity maneuver without incident, however the patient fainted during the FVC maneuver. The most likely explanation is that

The following results were obtained from a 62-year-old male:PredictedMeasuredSVC3.5L2.63LFEV12.45L/min1.74L/minFEV1/FVC70%66%These results are most indicative of

The results of flow-volume loop study indicate that the inspiratory flow curve is normal, however the expiratory flow curve is decreased. Based upon these results, the technologist should interpret these results as