NURSING EXAM QUESTIONS
PHARMACOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1 L
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2 L
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5 L
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7 L
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Detailed explanation-1: -The vital capacity (VC) is the maximal volume of gas exhaled during a forced exhalation after a forced inhalation. Thus VC is the sum of the VT, IRV, and ERV. The VC is approximately 4.5 L in a healthy 70-kg adult.
Detailed explanation-2: -Did you know that the maximum amount of air your lungs can hold-your total lung capacity-is about 6 liters? That is about three large soda bottles. Your lungs mature by the time you are about 20-25 years old. After about the age of 35, it is normal for your lung function to decline gradually as you age.
Detailed explanation-3: -This represents the percentage of your lung capacity you can expel in 1 second. The higher your percentage, the larger your lung capacity and the healthier your lungs. Your doctor will likely diagnose COPD if your FEV1/FVC ratio falls below 70% of the predicted value.