chapter 49 key term Word Scramble
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| artifact | Any irrelevant object or mark observed when examining specimens or graphic records that is not related to the object being examined—for example, a foreign object visible through a microscope or an erroneous mark on an ECG strip. |
| cardiac cycle | The sequence of contraction and relaxation that makes up a complete heartbeat |
| depolarization | The loss of polarity, or opposite charges inside and outside; the electrical impulse that initiates a chain reaction resulting in contraction. |
| dysrhythmia | An irregularity in heart rhythm; also called arrhythmia. |
| electrode | sensor that detects electrical activity |
| forced vital capacity (FVC) | the greatest volume of air that a person is able to expel when performing rapid forced expiration |
| Holter monitor | An electrocardiography device that includes a microchip or a small cassette recorder worn around a patient's waist or on a shoulder strap to record the heart's electrical activity |
| pulmonary function test | A test that evaluates a patient’s lung volume and capacity; used to detect and diagnose pulmonary problems or to monitor certain respiratory disorders and evaluate the effectiveness of treatment. |
| rhythm strip | An ECG tracing obtained using an electrocardiograph machine |
| spirometry | a test used to measure breathing capacity |
| hypoxemia | low levels of oxygen in your blood |
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