EKG 3

Which of the following are symptoms of decreased cardiac output?

• change in color

• cold, clammy skin

• dyspnea and fatique

• all of the above

Tachycardia is:

• slower than 100 bpm

• faster than 100 bpm

• slower than 60 bpm

• faster than 60 bpm

The normal PRI range is:

• 0.32 to 0.36 sec

• 0.04 to 0.08 sec

• 0.20 to 0.24 sec

• 0.12 to 0.20 sec

The heart rate is influenced by the:

• somatic nervous system

• cardiovascular system

• central nervous system

• autonomic nervous system

Disorders related to inadequate blood supply include:

• a. angina pectoris

• b. sinus arrhythmia

• c. myocardial infarction

• d. Both a & c

Angina pectoris is:

• A. ischemia of the myocardium

• B. muscle strain

• C. chest pain

• D. both A & C

On EKG paper, one small box represents:

• 1 sec and .04 mm

• .04 sec and 1 mm

• .05 sec and 1 cm

• .04 sec and 1 cm

Which system affects the atria, ventricles and valves?

• central nervous system

• sympathetic nervous system

• digestive system

• cardiovascular system

EKG graph paper can be used to measure:

• amplitude

• voltage

• time

• all of the above

Blood entering the right atrium is:

• oxygenated

• deoxygenated

• thin

• none of the above