HDL cholesterol + LDL cholesterol + chylomicrons ® HDL. Which is NOT used as a precipitating reagent for determining cholesterol?

1.78 x 3 = ________

A) 5.34 B) 3.45 C) 5.43 D) 4.35

The barking sound heard in a patient with LTB is caused by which of the following?

a. Partial lower airway obstruction b. Partial upper airway obstruction c. Expiration against a partially closed glottis d. Pharyngeal edema