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Which of the following does NOT deliver deoxygenated blood to the heart?

A patient who has been diagnosed with myocardial infarction is getting an ECG. The ECG trace shows a series of nonconducted P waves followed by a P wave that is conducted to the ventricles. The ratio of nonconducted to conducted P waves is fixed at 4:1. What plan for treatment should this patient receive?1. Rapid defibrillation2. Atropine3. Cardioversion4. Pacemaker

Which of the following are common causes of ventricular tachycardia?1. Myocardial infarction2. Coronary artery disease3. Hypertensive heart disease4. Pericarditis

What parameter is measured on the vertical axis of the ECG paper?

A QRS axis at -120 degrees is indicative of:

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.

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%    

The following results were obtained from a 72-year-old patient:PredictedMeasuredSVC3.2 L2.6 LFVC3.2 L3.0 LFEV12.24 L/min0.9 LFEV1/FVC70%30%These results are most indicative of

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

What conclusions can you draw from the following data, obtained from a 41-year-old man who admits to “occasional smoking” but otherwise reveals no past history of pulmonary problems?Actual Predicted%predictedTLC4.754.9097%FRV2.312.21105%RV1.281.20106%VC3.483.6396%FVC2.963.6382%FEV1/FVC82%68%FEF200-12004.335.4579%FEF25%-75%1.953.3758%