The femoral pulse point is located in the inner aspect of the crease where the upper thigh joins the trunk of the body

The Friedewald equation is used to calculate the concentration of LDL cholesterol in a sample. In cases of suspected lipid disorders, the Friedewald equation should not be used. Which of the following explains why?

A) In lipid disorders, the measure of total cholesterol frequently is less than the measure of HDL, resulting in a negative LDL value. B) LDL values obtained from the Friedewald equation do not include the concentration of solid, crystalline LDL. C) The calculation does not take into account interfering concentrations of gaseous CO2. D) The Friedewald equation assumes that nearly all the circulating TG is in VLDLs.

Why is the radial artery the preferred site for arterial blood sampling?

1. It is near the surface and easy to palpate and stabilize. 2. The ulnar artery normally provides good collateral circulation. 3. The radial artery is not near any large veins. 4. It is the largest artery located in the upper extremities. a. 1 and 4 only b. 3 only c. 2 and 4 only d. 1, 2, and 3 only