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Atenolol
Paramedic
9
Pharmacology
Advanced
09/11/2021

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Cards

Term
Atenolol
Definition
Tenormin
Term
Class
Definition
  1. Beta-Blocker (Beta-1 selective)
  2. Antihypertensive
Term
MOA
Definition
  1. Decreases heart rate, myocardial contractibility, and myocardial oxygen demand.
  2. Inhibits dilation of bronchial smooth muscle
Term
Indications
Definition
  1. To decrease heart rate, the force of myocardial contraction, and myocardial oxygen demand in patient experiencing ACS.
  2. Hypertension stable narrow-QRS tachycardia if the rhythm persists despite vagal maneuvers or adenosine or if the tachycardia is recurrent.
  3. For ventricular rate control in AF and atrial flutter if no signs of heart failure.
  4. May be used in the treatment of specific forms of polymorphin VT
Term
Contraindications
Definition
  1. Heart Failure
  2. Cardiogenic Shock
  3. Bradycardia
  4. Lung Disease
  5. Hypotension
  6. Second or Third degree heart block
Term
Adverse Reactions/Side Effects
Definition
  1. Dizziness
  2. Bronchospasms
  3. Bradycardia
  4. AV conduction delays
  5. Hypotension
  6. Myocardial Infarction
  7. Heart Failure
Term
Drug Interactions
Definition
  1. May potentiate antihypertensive effects when given to patients taking calcium channel blockers or MAOIs.
  2. Catecholamine-depleting drugs may potentiate hypotension.
  3. Sympathomimetic drugs may be antagonized.
  4. Signs of hypoglycemia may be masked.
Term
Dosage and Administration
Definition

Adult:

5 mg slow IV (over 5 minutes). Wait 10 minutes. If dysrhythmia persists or recurs give second dose of 5 mg over 5 minutes.

 

Pediatric:

Not recommended

Term
Duration of Action
Definition

Onset: within 5 minutes

Peak: 10 Minutes

Duration: 2 to 4 hours

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