Free ARRT Radiography Questions and Answers

Question 1

In which of the following is a lumbar puncture most likely to occur?

Accepted Answer

at the level of L 3-4

Answer

A lumbar puncture (spinal tap) is most commonly performed between the L3-L4 or L4-L5 vertebrae. This specific location is chosen because the spinal cord typically ends around the L1-L2 level in adults, making punctures below this point safer. Performing the procedure at L3-L4 minimizes the risk of spinal cord injury.

Question 2

Which of the following drug delivery systems falls under the definition of "parenteral"?

Accepted Answer

other, except alimentary

Answer

Parenteral drug administration refers to routes that bypass the gastrointestinal (alimentary) tract. This includes various methods such as injections (intravenous, intramuscular, subcutaneous), as well as other non-oral routes like topical, transdermal, or inhaled. Therefore, 'other, except alimentary' accurately encompasses the diverse drug delivery systems defined as parenteral.

Question 3

The relationship between the height of the lead strip and the grid ratio is known as this.

Accepted Answer

distance between lead strips

Answer

Grid ratio is defined as the height of the lead strips divided by the distance between them (Grid Ratio = h/D). Therefore, the distance between the lead strips is a critical component in determining the grid ratio. A smaller distance between strips for a given height results in a higher grid ratio, which improves scatter cleanup but requires more precise alignment.

Question 4

How many degrees is the patient rotated in order to show the apophyseal joints of the lumbar vertebrate in AP projection?

Accepted Answer

Answer

To visualize the apophyseal (zygapophyseal) joints of the lumbar vertebrae in an AP oblique projection, the patient needs to be rotated approximately 45 degrees. This specific rotation projects the joints free of superimposition, allowing for clear diagnostic evaluation. The degree of rotation can vary slightly depending on the patient's lumbar curvature.

Question 5

Which clinical symptom DOES NOT relate to acute abdominal discomfort?

Accepted Answer

extreme diarrhea

Answer

While diarrhea can accompany some abdominal issues, 'extreme diarrhea' is not typically considered a primary or defining symptom of acute abdominal discomfort in the same way as a rigid abdomen, nausea/vomiting, or extreme thirst. Acute abdominal discomfort often presents with sudden, severe pain, guarding, and systemic signs like nausea/vomiting, or signs of hypovolemia like extreme thirst.

Radiography Exam Practice Test

Radiography Exam Practice Test

Free ARRT Radiography Questions and Answers