| A | B |
|---|
| What are recommended fixatives for blood smears | Absolute ethanol |
| What is a recommended fixative for rush biopsies | Methanol |
| What can be preserved by using absolute alcohol and methanol for fixation | Mast cells, Iron and copper |
| What fixative is used for fat demo, perservation of acid mucopolysacchrides, diagnosis of rabies | Aceton |
| What is acetone not recommended for | preserving glycogen and certain lipids |
| What are the disadvantages of Carnoys fixative | Swells tissue, no acid fast stains, destroys rbcs, destroys paneth cells |
| What fixative is considered poor when demonstrating cytoplasmic components | Acetic acid |
| What are the advantages of acetic acid | coagulates nucleic acid, renders chromatin basophilic, counteracts shrinking effects of alcohol on tissue |
| What fixative is not recommended as a lipid fixative | alcohol |
| What is the isoelectic point | When positive and negative charges are balanced |
