GTN spray

Question 1

Indications for GTN spray

Answer 1

• Myocardial ischaemia.
• Cardiogenic pulmonary oedema.
• Control of hypertension associated with autonomic dysreflexia.
• Control of hypertension prior to fibrinolytic treatment for STEMI.
• Control of hypertension during inter-hospital transfer for STEMI.
• STEMI

Question 2

Contraindications for GTN spray

Answer 2

• Known severe allergy.
• Systolic BP less than 110
• Heart rate less than 40
• Heart rate greater than 150
• Ventricular tachycardia.

Question 3

Cautions for GTN spray

Answer 3

• STEMI
• Frail PTs
• Signs of shock
• Dysrhythmia
• Taken Phosphodiesterase inhibitor in last 24hr
• Known aortic/mitral stenosis

Question 4

Actions of GTN spray

Answer 4

• Is a vasodilator, reduces pre load and after load of the heart therefore reducing venous return, resulting in a reduction to cardiac output

Question 5

GTN dosage

Answer 5

• MI = 0.4mg (1 spray) every 5 mins, increase if caution
• STEMI = 0.4mg (1 spray). with hold if poor perfusion
• CPO = 0.8mg (2 sprays) every 5 mins, increase if caution
• Control of hypertension: 0.4 mg every five minutes.

Question 6

GTN side effects/onset time

Answer 6

side effects = Hypotensive, headache, flushed, Tachycardic
onset time = 1-2mins