A28-year-old female presents to the er complaining of severe chest pain that worsens with respirations or lying down. she has a fever, tachycardia, and a friction rub. the most likely cause of these symptoms is:

ANSWER:

The most likely cause of the symptoms mentioned can be the result of the "swelling or irritation of the pericardium" which is a thin "sac-like membrane" that surround the heart.

EXPLANATION:

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."