POST TEST FOR MODULE 37:  Optical Coherence Tomography, Part 1        Catalog

                                                                   

To print this test:  Go to the "File" menu of the window in which this appears and click "print".

Instructions:  This is an "open-book" test,  meaning you can refer to the module while answering the questions.  Use this printed version for your convenience when referring back to the module information.  

If submitting answers online:  Go to the online submission form to enter and submit your answers.

If sending forms in the mail:  You must print and send in a copy of the ANSWER SHEET and the EVALUATION FORM to receive credit.   Do not mark your answers on this question page and do not send this page in for scoring.

1. "OCT" stands for:

A. ocular coherence tomography

B. oculus coherence tomography

C. optical coherence tomography

D. optimum coherence tomography   

2. The OCT uses _____ to image a vertical section of the retina.

A. light

B. sound waves

C. ultrasound

D. radio waves

3. Which retinal layer is the most reflective?

A. bipolar cells

B. rods and cones

C. ganglion cells

D. retinal pigment epithelium

4. Which function is not part of OCT qualitative analysis of the retina?

A. description by location

B. volume measurements

C. description by form

D. observation of reflective qualities

5. Which anomalous structure would be found in the pre-retinal region/profile of an OCT scan?

A. macular cyst

B. retinal pigment epithelial detachment

C. vitreo-retinal membrane

D. drusen

6. With the OCT 3, which color is associated with high reflectivity?

A. green

B. blue

C. red

D. black

7. When a dense structure blocks light from passing to lower layers in an OCT scan, it is called:

A. highlighting

B. blackout

C. retro-illumination

D. shadowing

8. An anomaly in an OCT scan that is the result of an external agent or action, and is not an image of an actual structure, is called:

A. shadowing

B. an artifact

C. interference

D. articulation

9. Fluorescein angiography gives us information about retinal blood flow over time, and OCT scanning does not.

A. True

B. False

10. Which of the following is a low resolution scan of the retina?

A. Fast Macular Thickness Scan

B. Line Scan

C. Cross Hair Scan

D. 7mm Posterior Pole Scan

11. Which scan should only used for screening purposes when performing OCT qualitative analysis of the retina?

A. Fast Macular Thickness Scan

B. Line Scan

C. Cross Hair Scan

D. 7mm Posterior Pole Scan

12. Which can not be changed when using the line scan?

A. scan length

B. scan angle

C. scan position on the retina

D. all can be changed

13. The 7mm posterior pole scan is particularly useful if:

A. the foveal depression is present

B. the patient has poor fixation

C. the patient has good fixation

D. a circle scan is required

14. Which scan analysis protocol "straightens" scan motion artifacts?

A. align

B. normalize

C. proportional

D. smoothing

15. The two button near the joystick on the OCT 3 instrument are used for:

A. locking an unlocking the instrument

B. turning the video light on and off

C. freezing and saving scans

D. turning the room lights on and off