Sample Questions

Unit A - Invasive Basics

Taken directly from Todd's CV Review books, 7th Edition

Unit A, Chapter 1 - General Concepts of Math
Question #1

What does the MKS system use as the basic unit of distance?
a. Micron
b. Inch
c. Meter
d. Mole

Check Your Answer

ANSWER: c. Meter
MKS = Meter Kilogram Second. Other systems include: CGS (cm, gm. sec) and English (ft, lb, sec).
See: math text

Unit A, Chapter 2 - Patient Care
Question #38

Medical terms are commonly built by adding a prefix in front of a root word. Match each prefix in the box with its meaning below.
a. Behind
b. Deficient
c. Excessive
d. Within
e. Surrounding
f. Across

Check Your Answer

ANSWERS: 1e, 2d, 3a, 4c, 5d, 6f
1. Peri- = e. Surrounding or around (e.g., pericardium)
2. Endo- = d. Within or inward (e.g., endocardium)
3. Retro- = a. Behind or backward (e.g., retroperitoneal)
4. Hyper- = c. Excessive, above, beyond, or more than normal (e.g., hyperkalemia)
5. Hypo- = b. Deficient, beneath, under, or below normal (e.g., hypothermia)
6. Trans- = f. Across or beyond (e.g., trans-thoracic)
See: Medical Dictionary

Unit A, Chapter 3 - Instrumentation
Question #143

Match the electric quantity labeled #1 in the box (Charge) with its Standard International (SI) unit of measurement below.
a. Tesla (Gauss)
b. Weber
c. Volt
d. Farad
e. Coulomb

Check Your Answer

ANSWER: e. Coulomb.
Coulomb is a quantity of negatively charged electrons. An ampere of flow occurs when this quantity of electrons flow past a point in the circuit each second. One amp = one coulomb/sec.
1. Charge = Coulomb = Amp sec = quantity of electron charges
2. Potential = Volt = driving force or pressure
3. Capacitance = Farad = short term charge storage
4. Magnetic flux = Weber = quantity of magnetic flux
5. Magnetic induction = Tesla (Gauss) = density of magnetic lines (flux density)
See: Curry, chapter on “Radiation”

Unit A, Chapter 4 - Sterilization and Asepsis
Question #221

Identify the meaning of the term labeled #1 in the box.
a. Destroys all microorganisms
b. Inhibits or stops growth of bacteria
c. Kills bacteria
d. Destroys most pathogens on living tissues
e. Destroys most pathogens on instruments, unsafe for living tissues
f. Destroys all pathogens

Check Your Answer

ANSWER: e. Destroys most pathogens on instruments, unsafe for living tissues.
BE ABLE TO MATCH ALL ANSWERS.
Know all the terms and their meanings.
1. Disinfect = Destroys most pathogens on instruments. Unsafe for living tissues.
2. Bacteriostatic = Inhibits or stops growth of bacteria (-static = hold steady).
3. Bactericidal = Kills bacteria (-cidal = kill).
4. Antiseptic = Destroys most pathogens on living tissue, safe to use on skin.
5. Sterilize = Destroys all microorganisms.
6. Aseptic = Destroys all pathogens (-sepsis = infection).
See: Burton, chapter on "Control of Microbial Growth"