Pressure

Question 1

action of a force against an opposing force

Answer 1

pressure

Question 2

whatever pressure is necessary to overcome initial vascular resistance and distribute embalming solution to all areas of body

Answer 2

recommended pressure; ideal pressure

Question 3

speed at which fluid is injected, measured in ounzes per minute

Answer 3

rate of flow

Question 4

controlled by valve on machine which controls the flow of fluid much like a water faucet

Answer 4

rate of flow

Question 5

will ensure uniform distribution without causing over distention or adverse color change; vascular resistance can be because of clots

Answer 5

ideal rate of flow

Question 6

consists of a bottle (percolator), rubber tubing (valentine tube), and device to suspend the bottle above the point of injection

Answer 6

gravity injector method

Question 7

gravity problems

Answer 7

reservoir of glass bottle is much smaller; have to mix chemical on own

Question 8

consist of hand operated pump, tubing and goose neck arrangement and glass fluid bottle

Answer 8

hand pump

Question 9

creates injection pressure or aspiration

Answer 9

hand pump

Question 10

simplest form of injection apparatus; consists of bulb type rubber syringe and rubber tubing; rarely used; no method to create pressure

Answer 10

bulb syringe

Question 11

most commonly used method of creating injection pressure

Answer 11

motorized force pump (centrifugal)

Question 12

fluid injected in spurts

Answer 12

pulsating

Question 13

fluid injected on continuous basis

Answer 13

nonpulsating

Question 14

force pump considerations

Answer 14

reliable; wide pressure range; constant pressure; large unit volume

Question 15

force pump precautions

Answer 15

needs frequent servicing; requires constant attention of operator

Question 16

pressure indicated by injector gauge needle when the injector motor is running and arterial tubing is clamped off

Answer 16

potential pressure

Question 17

pressure indicated by the injector needle when the arterial tube is open and arterial solution is flwoing into the body

Answer 17

actual pressure

Question 18

difference between potential and actual pressure

Answer 18

differential pressure

Question 19

factors affecting injection pressure- intravascular

Answer 19

condition of vessels-normal vs. sclerotic; local congestion of blood in area-prevents flow of additional fluid in an area

Question 20

factors affecting injection pressure- extravascular

Answer 20

weight of viscera-pressing medially on descending aorta; gas in viscera; tumors- pressing against outside walls of arteries; ascites; contact pressure; edema of extremities

Question 21

time between death and embalming

Answer 21

postmortem interval

Question 22

postmortem interval

Answer 22

presence of rigor mortis, state of decomp., discolorations, livor mortis/cadaveric lividity