are getting air into his lungs.

6. Remove your mouth from the patient's mouth, and listen for him to
breathe out the air you breathed into him. You also may feel his breath
on your cheek and see his chest sink as he exhales.

7. Continue your breathing for the patient. If he is an adult, blow a
good breath into his mouth every 5 seconds, or 12 times a minute, and
listen for him to breathe it back out again. _Caution_: If the patient
is an infant or small child, blow _small puffs_ of air into him about 20
times a minute. You may rupture his lung if you blow in too much air at
one time. Watch his chest rise to make sure you are giving him the right
amount of air with each puff.

8. If you are _not_ getting air into the patient's lungs, or if he is
not breathing out the air you blew into him, first make sure that his
head is tilted back and his jaw is jutting out in the proper position.
Then use your fingers to make sure nothing in his mouth or throat is
obstructing the air passage to his lungs. If this does not help, turn
him on his side and strike him sharply with the palm of your hand
several times between his shoulder blades. This should dislodge any
obstruction in the air passage. Then place him again on his back, with
his head tilted back and his jaw jutting out, and resume blowing air
into his mouth. If this doesn't work, try closing his mouth and blowing
air through his nose into his lungs.

9. If you wish to avoid placing your mouth directly on the patient's
face, you may hold a cloth (handkerchief, gauze or other porous
material) over his mouth and breathe through the cloth. But don't waste
precious time looking for a cloth if you don't have one.