What's the prefix of angioscopy

What is the function of reverse transcriptase in retroviruses? a) it uses viral rna as a template for dna synthesis.b) it converts host cell rna into viral dna.c) it translates viral rna into proteins.d) it uses viral rna as a template for making complementary rna strands.

Avoiding excess salt and sodium may benefit a person’s health by

Aclient is scheduled for a diagnostic examination. what will the nurse do first?