A process of introducing 1 cc or 1 ml of pure contrast
media to the patient to check if there is any reaction or adverse effect to the patient.
SENSITIVITY TESTING
What are the methods of sensitivity testing?
- Scleral Method
- Sublingual Method
- Subcutaneous Method
- Intravenous Method
introduction of c.m. through the eyes.
Scleral Method
introduction of c.m. through the tongue.
Sublingual Method
introduction of c.m. through skin.
Subcutaneous Method
introduction of c.m. through the veins.
Intravenous Method
What are the possible effects of Scleral method?
- redness of eyes
- eye irritation
- eye swelling
What are the possible effects of sublingual method?
- tongue irritation
- vomiting
- salivation
- tongue swelling
What are the possible effects of subcutaneous method?
- dilatation
- vomiting
-salivation
What are the possible effects of Intravenous method?
- Itchiness
- Vomiting
- Nausea
-Dizziness
no treatment is necessary , observation is of
greatest importance and the patient may exhibit
a.“metallic taste” in the mouth
b. Nausea
c. vomiting
d. flushing of skin
e. mild urticaria (hives)
Mild
- requires some treatment such as histamine, but patients do not have to be hospitalized.
The patient may also exhibit:
- mild drop in Blood Pressure
- urticaria of increased severity
Moderate
–requires some hospitalization and are
possibly life threatening.
The patient may exhibit:
- prolong drop in blood pressure
- collapse of circulatory system
- angina (chest pain)
- cardiac arrhythmia
- coma, convulsion, and paralysis
Severe
the rarest type, occurs about one in every
20,000 examinations.
Fatal
generally administered intramuscularly
commonly used for moderately
severe allergic reactions
Ampoule Benadryl (Diphenhydramine HC)
What are the drugs to be given to the patient if there is reaction:
- Ampoule Benadryl (Diphenhydramine HC)
- Antistine
- Epinephrine
- relieves itching and irritation when
allergic conditions affect the eye. - it starts to relieve irritated eyes within
5-10 minutes and its effects
will last for 2-6 hours.
ANTISTINE
- bronchodilator
- Adrenaline
Epinephrine
What are the patient might be exhibit in “MILD”
- metallic taste
- Nausea
- Vomiting
- Flushing of skin
- mild urticaria
What are the patient might be exhibit in “MODERATE”
- midl drop in blood pressure
- urticaria of increased severity
What are the patient might be exhibit in “SEVERE”
- prolong drop in blood pressure
- collapse of circulatory system
- angina ( chest pain)
- cardiac arrhythmia
- coma, convulsion and paralysis
What are the possible effects of Scleral Method?
- redness of eyes
- eye irritation
- eye swelling
What are the possible effects of Sublingual Method?
- tongue irritation
- vomiting
salivation - tongue swelling
What are the possible effects of Subcutaneous Method?
- Dilatation
- Vomiting
- Salivation
