A QRS axis at -120 degrees is indicative of:

A patient taking an ECG shows a regular sawtooth pattern with 30 P waves within a 6-sec interval (30 large boxes). What course of treatment should this patient receive for this arrhythmia?1. Calcium channel blockers2. Digoxin3. Beta Blockers4. Defibrillation

What conclusions can you draw from the following data, obtained on a 32-year-old 53-kg woman admitted for elective surgery?ActualPredicted%PredictedTLC4.935.2794%FRC2.412.4399%RV1.291.3596%VC3.643.8694%FVC3.673.8695%FEV1/FVC84%78%FEF200-12005.665.7499%FEF25%-75%3,533.49101%    

A patient has an expired minute ventilation of 11.2 L/min and a ventilatory rate of 20/min. What is the average VT?

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?

A patient has an inspiratory reserve volume of 2,700 ml, a functional residual capacity (FRC) of 3300 ml, and an expiratory reserve volume (ERV) of 1300 ml. What is the residual volume (RV)?

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

What is the predicted normal forced vital capacity (FVC) for the average 20-year-old man?

A patient with a self-reported history of intermittent wheezing has a normal results from pre and post bronchodilator spirometry. Which of the following tests would demonstrate hypersensitivity of the patient’s airways?

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