GTN

Question 1

GTN Class

Answer 1

Nitrate. Potent Coronary Vasodilator / Reduces BP / DIlation of systemic Veins

Question 2

GTN Presentation

Answer 2

Aerosol spray: metered dose 400mcg

Question 3

GTN Administration

Answer 3

Sublingual (SL)

Hold Pump spray vertically with valve head uppermost.
Place as close to the mouth as possible and spray under the tongue. The mouth should be closed immediately after each dose

Question 4

GTN Indications

Answer 4

Angina
Suspected Myocardial Infarction (MI)
Pulmonary Oedema

Question 5

GTN Contraindications

Answer 5

Sys BP <90 mmHg
Viagra or other Phosphodiesterase type 5 inhibitors (sildenafil,taladafil, vardenafil) used within previous 24 hours
Severe Mitral Stenosis
KSAR

Question 6

GTN Dosage

Answer 6

Adult:
Angina or MI: 400 mcg repeat at 3-5 mins to max 1200mcg
Pulmonary Oedema: 800mcg Repeat X 1

Paed: not indicated

Question 7

GTN Side Effects

Answer 7

Headache
Transient Hypotension
Flushing
Dizziness

Question 8

GTN

Additional Info

Answer 8

Caution with inferior wall MI with Right Ventricular Involvement as this may lead to profound hypotension
If the pump is new or has not been used for a week or more the first spray should be released into the air