P wave is the atria “firing”/depolarizing, the QRS complex is the ventricles depolarizing (and the atria are depolarizing while this happens), and the T wave is the ventricles depolarizing. Depolarizing is when it contracts, and repolarizing is when it relaxes and refills.
Answer: 15
Explanation: since it affects only 1 out of 20, you can divide 300 by 20 which equals 15
Answer:
Disinfection and sterilization are essential for ensuring that medical and surgical instruments do not transmit infectious pathogens to patients.
Answer:
D. They are airborne
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