Which of the following instruments can measure calcium, magnesium, and phosphorus in blood samples?
A. Fluorometer
B. Osmometer
C. Atomic absorption spectrometer
D. Refractometer
C
Health Professions
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Which of the following local anesthesia drugs is available without a vasoconstrictor?
A) Lidocaine B) Articaine C) Bupivacaine D) Procaine
Health Professions
Which of the following layers of the heart wall lines the heart chambers and valves?
A) endocardium B) pericardium C) epicardium D) myocardium
Health Professions