Glyceryl Trinitrate

Question 1

What is Glyceryl Trinitrate classified as?

Answer 1

Vasodilator

Question 2

What is Glyceryl Trinitrate commonly shortened to?

Answer 2

GTN

Question 3

What is the action of Glyceryl Trinitrate?

Answer 3

Potent vasodilator that:

• Decreases preload by increasing venous capacity
• Reducing ventricular filling pressure
• Decreasing arterial blood pressure (after load)

Question 4

What are the side effects of Glyceryl Trinitrate?

Answer 4

• Headache
• Flushing
• Hypotension
• Syncope
• Reflex tachycardia
• Dizziness

Question 5

What are the indications for administering Glyceryl Trinitrate?

Answer 5

• Suspected myocardial-type chest pain
• Acute Coronary Syndrome (ACS)
• Acute Cardiogenic Pulmonary Oedema

Question 6

What are the contraindications for administering Glyceryl Trinitrate?

Answer 6

• Known severe allergic reaction
• Heart rate < 50 or > 150 beats per minute
• Systolic BP < 100 mmHg
• Acute CVA
• Head trauma
• Use of Viagra, Cialis or Levitra in previous 24 hours

Question 7

What are the precautions when considering the administration of Glyceryl Trinitrate?

Answer 7

• Suspected inferior myocardial infarction
• Use of Viagra in previous 4 days
• Intoxication
• Cerebral Vascular Disease

Question 8

What is the onset time for Glyceryl Trinitrate?

Answer 8

< 2 minutes

Question 9

What is the duration of Glyceryl Trinitrate in the body?

Answer 9

20 - 30 minutes

Question 10

How is this drug predominantly administered?

Answer 10

Sublingually

Question 11

What is the dosage for Glyceryl Trinitrate?

Answer 11

400mcg

Question 12

How many times can Glyceryl Trinitrate be repeated?

Answer 12

Every 5 minutes as required - no max dose