You have performed a head tilt-chin lift maneuver on a 17-month-old boy and are attempting to ventilate him with a bag-valve mask. You are experiencing a lot of resistance with each breath and the chest is barely rising. Prior to attempting ventilations again, you should:

A) tilt the head back further.
B) ease the head forward a little.
C) perform chest thrusts.
D) finger sweep the airway.

The correct answer is - option B.

Explanation:

The head tilt or lift chin maneuver is the method that helps in the prevention of the blocking the airways by obstructions due to tongue more often. It is the procedure which is performed by the lifting the chin backwards or tilting the head towards back so the applied pressure that cause the ventilation normal again in the patient. If the person is not showing any improvement one should ease his/ her head forward a little so the pressure could be released.

Thus, the correct answer is - option B.

true is the

the energy generated by an individual's metabolism is calculated in met (metabolic equivalent of task). the met is the ratio of the work metabolic rate to the resting metabolic rate. one met is illustrated as 1 kcal per kilogram per hour, and is probably equal to the energy cost of sitting quietly.

1 met is equal to 1.162 watt per kg

1 kg is equal to 1000 grams

as the person weighs 80000 gm, that is, 80 kg.

therefore, 80*1.162 = 92.96

thus, the person expends 92.96 watts of power while at rest.