Prep
1. A patient has nocturnal dyspnea and states they "have to sleep sitting up".
BP 210/140, HR 88, SP02 80%, RR 26. What should you do?: Apply CPAP
2. What is the period of the cardiac cycle when stimulation will not produce and
depolarization?: Absolute Refractory period
3. What does the P-R interval represent?: Atrial depolarization and A-V delay
4. A positive deflection on the ECG tracing paper indicates that the electrical impulse is::
Moving toward the positive electrode
5. What is the best position to optimally hear heart sounds?: Sitting up, leaning forward
6. What should treatment for cardiogenic shock with associated pulmonary edema
include?: Elevating the patients head and shoulders
7. What does the S-T segment elevation greater than 0.1 in at least 2 contiguous leads
indicate?: Myocardial Infarction
8. What neurotransmitter is responsible for stimulation of the postganglionic fibers in the
parasympathetic nervous system?: Acetylcholine
9. What best describes ventricular filling?: Diastole
10. Where are the first electrical impulses stimulating the heart located?: Right Atrium
11. A patient with a history of CHF complains of severe dyspnea. During transport SPO2
drops to 76% and he starts coughing up pink sputum. What should you do?: Assist
his ventilations
12. 65 YO presents with a fever and sharp, steady pain along the upper neck and shoulder
that worsens upon inspiration. Vitals BP 144/92, P 99, R 18, SPO2
95% on room air. What should you do?: Perform a 12 lead
13. Which has the thickest muscle wall?: Ventricular myocardium
14. Which of the following substances is most likely to cause premature ventricular
contractions?: Caffeine