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Correct Answer: triglycerides: <150 mg/dl
the question asks to identify the desirable range for the lipid component specified among the options. each option lists a range for different cholesterol components or triglycerides, followed by a statement summarizing the ideal ranges for various lipid profiles. let’s break down and expand the explanation for each option:
**total cholesterol: 200 – 239 mg/dl; triglycerides: <150 mg/dl**
here, the statement indicates that a desirable range for total cholesterol is less than 200 mg/dl. the value provided in the option (200 – 239 mg/dl) is above the desirable limit and falls into the category often termed as "borderline high." on the other hand, for triglycerides, the desirable range is less than 150 mg/dl, which aligns with the information given in the option. therefore, the triglycerides value meets the desired criterion, but the total cholesterol does not.
**ldl cholesterol: 130 – 159 mg/dl; triglycerides: <150 mg/dl**
in this option, the ldl cholesterol range provided is 130 – 159 mg/dl. this is above the desirable level, which is less than 130 mg/dl, categorizing it as "borderline high" to "high" depending on specific patient health contexts. the triglycerides level again meets the desirable criterion of being less than 150 mg/dl.
**hdl cholesterol: <35 mg/dl; triglycerides: <150 mg/dl**
for hdl (high-density lipoprotein) cholesterol, often referred to as "good" cholesterol, a level greater than 60 mg/dl is considered protective against heart disease. the level given in the option is less than 35 mg/dl, which is significantly below the desirable range and is considered poor, potentially increasing the risk of heart disease. the triglycerides component still fits within the desirable range of less than 150 mg/dl.
**triglycerides: <150 mg/dl; triglycerides: <150 mg/dl**
this option repeats the desirable range for triglycerides, which is less than 150 mg/dl, correctly twice. it reinforces the correct answer without ambiguity.
from the explanation provided, it is clear that the only component consistently within the desirable range across all options is the triglycerides level of less than 150 mg/dl. other components either exceed their respective desirable ranges or, in the case of hdl cholesterol, fall significantly below the protective threshold, indicating an increased health risk.
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