Exam Review 2 (s1) Flashcards
CH 20
The goal of a radiologic technologist in a medical emergency is to:
- recognize an emergency
- Preserve life
- Avoid further harm
- Get help
R.T’s should be alert for changes to a patients:
(CH 20)
- level of consciousness
- Demeaner
- Pain level
- Respiration
- Speech patterns
Types of shock:
(CH 20)
hypovolemic- loss of blood or fluids
Cardiogenic- Cardiac disorders (MI)
Neurogenic- spinal cord damage
Vasogenic- anaphylaxis
Hypovolemic
Shock due to loss of blood or fluids
Cardiogenic
Cardiac disorders
Neurogenic
spinal cord damage
Vasogenic
anaphylaxis
Signs of stoke:
- slurred speech
- dizziness
- loss of vision
- one-side paralysis
(CH 21-22)
(Drug Nomenclature)
Generic name
name given to drug when commercially available
(CH 21-22)
(Drug Nomenclature)
Chemical name
identifies chemical structure of drug
(CH 21-22)
(Drug Nomenclature)
Trade name
Name given to a drug manufactured by specific company
(brand name, propriety name, trademark)
(CH 21-22)
(Classification by Drug action)
Antiarrhythmics
Adenosine
(CH 21-22)
(Classification by Drug action)
Antidiabetic drugs
Metformin
(Glucophage)
(CH 21-22)
(Classification by Drug action)
Antihistamines
diphenhydramine
(Benadryl)
(CH 21-22)
(Classification by Drug action)
Antiplatelets
aspirin
(CH 21-22)
(Classification by Drug action)
vasodilators
nitroglycerin
(CH 21-22)
Factors that influence drug action (7)
- patient age
- health status
- time of day
- emotional status
- other drugs in the body
- genetics (genetic variations)
- disease state of the body (kidney/liver function)
(CH 21-22)
Drug reactions: Mild consist of:
Anxiety
lightheadedness
nausea
vomiting
itching
(CH 21-22)
Drug reactions: Moderate consist of:
urticaria
bronchospasm
angioedema
hypotension
Tachycardia (<100 beats/min)
(CH 21-22)
Drug reactions: severe consists of: (8)
Bradycardia (<50 beats/min)
cardiac arrythmias
laryngeal swelling
convulsions
loss of consciousness
cardiac arrest
respiratory arrest
no detectable pulse
(CH 21-22)
idiosyncratic reactions
abnormal response to a drug cause by individual genetic differences
(CH 21-22)
5 rights of drug administration:
right drug
right amount
right patient
right time
right route
(CH 21-22)
Methods of administration
Topical:
application of drug directly on skin
(CH 21-22)
Methods of administration
Enteral:
Drug administration through digestive system
oral
sublingual
buccal
rectal
(CH 21-22)
Methods of administration
Parenteral:
administered NOT through digestive (anything but)
Usually needles/syringes
intradermal
intramuscular
intravenous
subcutaneous
(CH 21-22)
Needles:
(diameter and length)
diameter expressed in gauges from 14-28
(smaller # is bigger diameter)
Vary in length .25 inches to 5 inches
most common is 1-1.5 inches
(CH 21-22)
venipuncture procedure:
insert needle next to vein at 15-30 degree angle
(CH 21-22)
infiltration:
medicine leaking into the soft tissue WITHOUT irritation
(CH 21-22)
extravasation
medicine leaking into the tissue WITH irritation
(CH 21-22)
Common medical abbreviations:
_
C:
IM:
IV:
PO:
With
Intramuscular
intravenously
by mouth
(CH 21-22)
Common medical abbreviations:
_
S:
NPO:
SC:
Stat:
Without
nothing by mouth
subcutaneously
immediately
(CH 23)
Negative contrast media:
Atomic #?
How does it appear?
Examples?
composed of low atomic number elements
appears radiolucent on image
Examples: air/gas (CO2)
(CH 23)
Positive contrast media:
Composed of higher atomic number elements
appears radiopaque on image
barium sulfate
water-soluble iodine contrast agents
(CH 23)
Barium Sulfate:
(BaSO4)
z=56
suspension
flocculation (tendency)
Screen patient for contraindication
(CH 23)
suspension means?
must be continually mixed
(CH 23)
Flocculation in barium sulfate:
tendency for barium sulfate to clump without the addition of sodium carbonate/sodium citrate
(CH 23)
_____ _____ following barium studies
push fluids
(CH 23)
what is contraindication?
suspected cases of Bowel Perforation
(always check before giving barium sulfate)
(CH 23)
water soluble iodine contrast agents
ionic & non-ionic contrast media
(CH 23)
ionic contrast media:
uses iodine as the contrast material (z=53)
Dissociates into two ions
Anion (negative)
&
cation (positive)
(increased osmolality/viscosity)
(CH 23)
increased osmolality:
the measure of the total number of particles in a solution per kilogram of water
increased viscosity:
Most adverse reactions to contrast result from the:
osmolality of the agent