Freckles and flat moles are examples of skin lesions known as ________. 

No impulse can cause depolarization during the ________ refractory period

A) original B) absolute C) relative D) impulse

Which of the following secretion clearance methods could be considered for a home care patient who lives alone?

1. Forced expiratory technique 2. Positive end expiratory pressure mask therapy 3. Active cycle of breathing 4. Postural drainage, percussion, and vibration a. 1 and 3 only b. 1, 2, and 3 only c. 3 and 4 only d. 2, 3, and 4 only