Answer by Gavin Harrington. Confidence votes 4.0K. A bitch is a female canine. The same word is often used in reference to something unpleasant or difficult to do. E.g- We had to deliver twenty large crates to the top floor, and the lift was out-that job was a bitch.
The internal jugular vein should be imaged and placed in the center of the ultrasound field. The needle should be angled at 40 to 60 degrees from the plane of the neck and 1 cm back from the middle of the ultrasound probe (Image 5).
Always use a new pipette and dispose of it after testing, aspirate liquid at a 90 degree angle, dispense at a 45 degree angle, and touch off to make sure all the liquid is dispensed. Graduated/Serological Pipette: When using this type of pipette, the final volume is found by calculating the difference of the liquid level before and after liquid is dispensed, much like a burette. This is the standard technique for using a graduated pipette: Hold pipette in solution, donât touch the bottom.