Free Computed Tomography Trivia Questions and Answers

Question 1

For an adult, the usual range of respiration is

Accepted Answer

12-20 breaths per minute

Answer

5-10 breaths per minute

Answer

35-50 breaths per minute

Answer

20-30 breaths per minute

Question 2

A patient having a history of an allergic reaction to iodinated contrast media may undergo the following procedures in advance of a contrast-enhanced CT scan:

Accepted Answer

Premedication with steroids and antihistamines

Answer

Administration of a negative contrast agent

Answer

Refraining from urination for 2 hours before the examination

Answer

Increase in fluids for 24 hours before the examination

Question 3

Which of the following signs may a patient in shock display?

Accepted Answer

All of the above

Answer

Tachycardia - rapid heart rate

Answer

Cyanosis- discolored skin {bluish}

Answer

Rapid, shallow breathing

Question 4

Which of the following signs may a patient in shock display? Which infection control measures are necessary at the site of an intravenous injection of iodinated contrast media?

Accepted Answer

Surgical asepsis

Answer

Contact isolation

Answer

Enteric precautions

Answer

Medical asepsis

Question 5

Iodinated contrast material is frequently injected intravenously at the following sites:

Accepted Answer

All of the above

Answer

Antecubital vein

Answer

Cephalic vein

Answer

Basilic vein

Question 6

Which of the following technical aspects directly affects the dose given to patients?

Accepted Answer

Milliampere-second {MAS}

Answer

Algorithm

Answer

Matrix size

Answer

Window level

Question 7

The patient should be questioned about the following matters before receiving an intravenous injection of iodinated contrast material:

1. Renal Function- One kidney dose is cut
2. Allergic History- Premedicated
3. Cardiac History- Heart disease

Accepted Answer

1,2, and 3

Answer

2 only

Answer

1 only

Answer

3 only

Question 8

Who is credited with the invention of Computed Tomography (CT)?

Accepted Answer

Godfrey Hounsfield

Answer

Albert Einstein

Answer

Marie Curie

Answer

Sir Isaac Newton

Question 9

What is the typical unit of measurement used for the density of tissues in CT scans?

Accepted Answer

Hounsfield Unit (HU)

Answer

Tissue Density Unit (TDU)

Answer

X-ray Absorption Unit (XAU)

Answer

Tissue Attenuation Index (TAI)

Question 10

What does the term "slice increment" refer to in CT imaging?

Accepted Answer

The interval between slices

Answer

The thickness of the gantry

Answer

The size of the patient

Answer

The size of the patient