The test in which weight of lungs is compared with body weight is/are –
**Core Concept**
The question is referring to a test used to assess the condition of the lungs in relation to the overall body condition. This test is based on the principle that the weight of the lungs should be proportional to the body weight in a healthy individual.
**Why the Correct Answer is Right**
The correct answer is related to the body mass index (BMI) of lungs, which is a useful indicator of pulmonary health. The lung-to-body weight ratio is a simple yet effective method to assess pulmonary edema, atelectasis, or other conditions that may cause an abnormal increase in lung weight. This ratio is calculated by comparing the weight of the lungs to the body weight, usually expressed as a percentage.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not relevant to the lung-to-body weight ratio. It might be related to another medical concept or test.
**Option B:** This option is incorrect because it does not directly assess the lung-to-body weight ratio. It might be related to another medical test or condition.
**Option C:** This option is not a valid test or measure of lung health. It might be a distractor to confuse the test-taker.
**Clinical Pearl / High-Yield Fact**
The lung-to-body weight ratio is a useful clinical tool to quickly assess pulmonary health. It is especially useful in emergency situations where a rapid assessment of lung condition is required.
**Correct Answer: D. Lung-to-body weight ratio.**