Why nitroglycerin is contraindicated in anemia?

Why nitroglycerin is contraindicated in anemia?

NITROSTAT is contraindicated in patients with severe anemia (large doses of nitroglycerin may cause oxidation of hemoglobin to methemoglobin and could exacerbate anemia).

What are the nursing implications for nitroglycerin?

Nursing Implications:

  • Check blood pressure and pulse before each administration of NTG–blood pressure can drop precipitously after a single dose.
  • NTG is highly unstable and should be stored in light resistant container in cool environment (not the refrigerator).

What are the contraindications of nitroglycerin?

The contraindications of nitroglycerine therapy include:

  • Allergic reactions to nitroglycerin are extremely rare, but reports do exist.
  • Known history of increased intracranial pressure, severe anemia, right-sided myocardial infarction, or hypersensitivity to nitroglycerin are contraindications to nitroglycerin therapy.

When administering nitroglycerin The nurse should watch for?

The nurse should monitor the patient’s blood pressure and heart rate. After 5 minutes, the pain level should be reassessed and a second dose of nitroglycerin administered if the patient’s chest pain continues.

Why does nitroglycerin lower the blood pressure?

Nitroglycerin works by relaxing smooth muscle within the walls of blood vessels (particularly veins) which dilates (widens) them. This helps to relieve chest pain that is caused by a narrowing of the blood vessels, and also reduces how hard the heart has to work to pump blood around the body, reducing blood pressure.

How is nitroglycerin administered in nursing?

How to Administer Sublingual Nitroglycerin

  1. Perform hand hygiene and don gloves.
  2. Perform the patient’s rights.
  3. Place one tablet under the tongue.
  4. After administration of the first dose, monitor the patient’s blood pressure very closely and their chest pain rating.

Can you give nitroglycerin with low blood pressure?

Nitroglycerin injection is used to treat hypertension (high blood pressure) during surgery or to control congestive heart failure in patients who have had a heart attack. It may also be used to produce hypotension (low blood pressure) during surgery.

Does nitroglycerin decrease blood pressure?

What is the nursing implications for digoxin?

Nursing Considerations Across the Lifespan Serum digoxin levels should be monitored, with a normal therapeutic range from 0.8 to 2 ng/mL. Serum potassium levels should also be closely monitored for patients on digoxin because hypokalemia increases the effect of digoxin and can result in digoxin toxicity.

What are the nursing implications of nitroglycerin administration?

Nursing Implications 1 Administer IV nitroglycerin with extreme caution to patients with hypotension or hypovolemia… 2 Monitor patient closely for change in levels of consciousness and for dysrhythmias. 3 Be aware that moisture on sublingual tissue is required for dissolution of sublingual tablet. 4 Assess for headaches. Approximately 50%…

What is nitroglycerin sublingual used to treat?

Nitroglycerin Sublingual. Nitroglycerin sublingual tablets are used to treat episodes of angina (chest pain) in people who have coronary artery disease (narrowing of the blood vessels that supply blood to the heart). It is also used just before activities that may cause episodes of angina in order to prevent the angina from occurring.

What are signs of drug tolerance in nitroglycerin toxicity?

Report signs of drug tolerance during long-term use, as indicated by increased episodes of angina or CHF symptoms. This problem may be resolved by instituting nitrate-free periods; that is, the physician may recommend removing the nitroglycerin patch for several hours each day.

Why is nitroglycerin used to treat angina?

It is also used just before activities that may cause episodes of angina in order to prevent the angina from occurring. Nitroglycerin is in a class of medications called vasodilators. It works by relaxing the blood vessels so the heart does not need to work as hard and therefore does not need as much oxygen. How should this medicine be used?