A ________ test is used to measure the amount of nitrogen in the blood, indicating renal function.
A. blood urea nitrogen
B. thyroxine
C. uric acid
D. creatinine
Answer: A
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After a bad cold, a 47 year old female sees her physician because of hearing loss and severe dizziness with accompanying nausea and vomiting
Which of the following specimens will her physician submit to the microbiology laboratory to confirm the causative agent and diagnosis? A) Culture in not necessary B) Ocular scrapings C) Blood D) Nasopharyngeal swab
The hypothalamus is the:
A) master control for the autonomic nervous system. B) gateway for the passage of memory. C) relay station. D) none of the above.
Which of the following is the primary pacemaker of the heart?
A. AV node B. Bundle of His C. SA node D. Purkinje fibers E. Bundle branches
If a characteristic of a population's behavior or environment influences the occurrence of disease, it is said to be a(n) _______________ of that disease.
Fill in the blank(s) with the appropriate word(s).