OSMT Prep - All Subjects Questions With Complete Answers.

During tissue processing, what is the correct sequence of steps ? a) clearing, dehydration, infiltration b) clearing, infiltration, dehydration c) dehydration, infiltration, clearing d) dehydration, clearing, infiltration - Answer d) dehydration, clearing, infiltration If a person has A- blood, who can they receive from within the ABO blood group? - Answer A-, ABWhat is the purpose of fixation? - Answer To stabilize proteins & colloidal material in cells/tissues so that it becomes resistant to change/remains as lifelike as possible Why is pure water neutral on the pH scale? - Answer Water has equal amounts of hydrogen and hydroxide atoms, therefore it is able to self ionize. How can the formation of paraformaldehyde be avoided - Answer Additives to formalin such as buffers or methanol What tube would be used to draw blood from a patient being tested for hematocrit? - Answer Lavender What is a compound fixative? - Answer Composed of 2 or more primary fixatives. What is the normal pH of blood? - Answer 7.35-7.45 How many stool samples must be collected for an ova & parasites exam? Why? - Answer 3 different samples from 3 different days because parasites can appear sporadically. What is serum used for in culture media? - Answer Can either enrich or solidify media.What is inspissation? - Answer The process of denaturing & coagulating serum by heating to 85 Celsius What is basic (nutrient) media? - Answer Contains common nutritional ingredients to support the growth of non-fastidious organisms. Not normally plate media. What primary basic ingredient provides a carbon & energy source for bacteria growth? - Answer Carbohydrates (glucose) Appromixmately how much blood is in a human adult body? - Answer 5L What is the most common stain used for cytology testing? - Answer PAP smear (Papinicolaou's staining technique) What are the four basic types of tissue? - Answer Epithelial, connective, muscular, nervous A movement that takes a body part further away from it's central axis is called a(n): - Answer Abduction Incomplete, partial hemolysis around bacterial colonies on a growth plate is called: a) Alpha hemolysis b) Beta hemolysis c) Gamma hemolysis - Answer a) Alpha hemolysis