Deck : Expired / Safety - 1592/267
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| After pinching a victim's nostrils, how can a rescuer best provide an airtight seal during mouth to mouth ventilation? |
| A) by holding the jaw down firmly |
| B) by applying his mouth tightly over the victim's mouth |
| C) by keeping the head elevated |
| D) by cupping a hand around the patient's mouth |
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