An image viewed under the microscope is clearly seen under both the 10´ and 40´ objectives, but it is not visible under ´100. What is the most likely reason for this?
a. Oil is too thick on the slide.
b. The slide is placed upside down on the stage.
c. The slide has a coverslip on it.
d. No oil is on the slide.
ANS: B
When an image is clearly visible under both 10´ and 40´ objective lenses but nothing is seen under oil immersion, even with oil on the slide, the slide is most likely upside down on the stage. The clinician should clean the oil off the wrong slide and turn the slide over, placing oil on the top side.
You might also like to view...
Which of the following is NOT one of the recommendations outlined in the MyPlate Daily Food Plan?
A) Make half of your grains whole grains B) Eat beans and peas weekly C) Restrict all beverages except water D) Eat seafood twice a week
Which of the following is a duty of the floater in surgery?
A. Pass instruments to the doctor during surgery B. Swab fluids from the incision or wound C. Retract the edges of the wound during surgery to assist the doctors in viewing the area D. Close the instruments on the sterile tray because they are left open during sterilization E. Measure the patient's vital signs during surgery and observe for a reaction to the anesthetic