Which of the following statements is the most accurate characteristic of cohort studies?

A) It is an efficient study designs for studying rare disease.
B) The temporality of the exposure preceding the outcome is hard to determine.
C) The incidence rate of disease in the exposure group is compared directly to the incidence rate of disease in the unexposed group.
D) The exposure and outcomes are captured at the same time.
E) The participants are randomly allocated to exposure and nonexposure categories.

In acupuncture, the channels through which qi, or life energy, flows are known as ________.

The ocular lens of a microscope should be cleaned with:

A) lens tissue paper
B) a damp paper towel
C) a dry paper towel
D) compressed air

Which type of immunity results from having an infectious disease?

A) Naturally acquired active
B) Artificially acquired passive
C) Naturally acquired passive
D) Artificially acquired active
E) Species resistance

Which of the following is an example of an invasive diagnostic procedure?

A) Mammography
B) CT scan
C) Angiography
D) Ultrasound
E) Standard X-ray

The medical assistant should instruct women not to wear eye makeup when having which diagnostic procedure because eye makeup often contains metallic ingredients.

A) Mammography
B) Ultrasound
C) Myelography
D) Magnetic resonance imaging
E) Nuclear medicine

The most commonly used antiseptic for minor surgery is ____.

A) Betadine
B) Xylocaine
C) epinephrine
D) hydrogen peroxide
E) isopropyl alcohol

To which of the following patients would a medical provider most likely render treatment as a professional courtesy?

A) Cancer patients
B) Elderly patients
C) Children
D) Other healthcare professionals
E) Any patient who cannot pay

What is the correct code assigned for a patient with deep vascularization of the cornea in both eyes?
A. H16.432
B. H16.433
C. H16.443
D. H16.449