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Drugs > Glyceryl Trinitrate (GTN) > Flashcards

Glyceryl Trinitrate (GTN) Flashcards

1
Q

Indications?

A
  • Cardiac chest pain due to Angina
  • Myocardial infarction when systolic blood pressure is greater than 90mmHg.
  • Breathlessness due to pulmonary oedema in acute heart failure.
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2
Q

What is GTN?

A

A potent vasodilator drug resulting in dilation of veins and arteries = reduced blood pressure

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3
Q

Contra-Indications?

A

Hypotension where systolic blood pressure is < 90mmHg or < 110mmHg in acute heart failure

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4
Q

Route?

A

Sublingual tablet or spray to be administered under patients tongue.

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5
Q

Dosage and Administration

A

Adult > 18 only.
For spray: 400-800 micrograms (one or two sprays), repeat after 5-10 minutes. No limit except for acute heart failure when it is 6 sprays.

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