The Type of Specimen That Should Be Used to Test

question 30

Multiple Choice

The type of specimen that should be used to test for the presence of nitrite in the urine is

• A) Specimen that has been left standing at room temperature for one-half hour
• B) 24-hour urine specimen
• C) Freshly voided random specimen
• D) First-voided morning specimen

---

Definitions:

Nonsynonymous Mutation

A type of nucleotide substitution in a gene sequence that leads to the coding of a different amino acid, potentially altering the function of the protein.

Synonymous Mutation

A genetic mutation that does not alter the amino acid sequence of a protein due to the redundancy of the genetic code, often considered silent mutations.

Amino Acid

The building blocks of proteins, consisting of a basic amino group, an acidic carboxyl group, and a unique side chain.

Codon

A sequence of three nucleotides which together form a unit of genetic code in a DNA or RNA molecule.