Dopamine Flashcards
Dopamine:
Classification -
1. (List of 3)
Classification -
1. Alpha/beta adrenergic stimulator. Sympathomimetic. Dopaminergic.
Dopamine: Action - 1. \_\_\_\_ 2. At low dose of 1-5 mcg/kg/minute: \_\_\_ 3. At dose of 2-20 mcg/kg/minute: \_\_\_ 4. At dose of 10-20 mcg/kg/minute: \_\_\_
Action -
- Increases blood pressure.
- At low dose of 1-5 mcg/kg/minut:, dopaminergic effects occur resulting in vasodilation of renal, mesenteric, and cerebral arteries increasing renal blood flow and urine output, but may not increase pulse or BP.
- At dose of 2-20 mcg/kg/minute: beta adrenergic effects (increased contracibility and chronotropic effect) ocur resulting in increased cardiac output with minimal changes in systemic vasular resistance or preload.
- At dose of 10-20 mcg/kg/minute: alpha-adrenergic effects occur resulting in vasoconstriction in the renal, mesenteric and peripheral arteries and veins.
Dopamine:
Onset of Action -
1. ___
Onset of Action -
1. 5 minutes.
Dopamine:
Duration of Action -
1. ___
Duration of Action -
1. 10 minutes after infusion ends
Dopamine: Indication - 1. \_\_\_ 2. \_\_\_ 3. \_\_\_
Indication -
- Symptomatic hypotension secondary to non-hypovolemic states.
- Low cardiac output states such as cardiogenic, anaphylactic, septic or neurogenic shock.
- Symptomatic bradycardia after atropine/pacing.
Dopamine: Contraindication - 1. \_\_\_ 2. \_\_\_ 3. \_\_\_
Contraindication -
- Uncorrected tachyarrhythmia due to hypovolemia.
- Ventricular fibrillation.
- Hypovolemic Shock.
Dopamine:
Use with Caution -
1. ___
2. ___
Use with Caution -
- Avoid extravasation of dopamine into surrounding tissue. If intravenous infusion infiltrates, it must be immediately removed. Notify the physician.
- Do not mix sodium bicarbonate or similar alkaline soutions, because inactivation of dopamine will result.
Dopamine:
Dosage and Administration -
1. ___
a. Usual infusion rate ranges from: ___
Dosage and Administration -
1. Dopamine must be diluted prior to administration; mix 400 mg in 250 mL NS with a micro-drip (1600 mcg/mL).
a. Usual infusion rate ranges from: 2-20
mcg/kg/minute, titrating to individual patient
response.
Dopamine:
Adverse Reaction -
1. (List of 3)
Adverse Reaction -
1. Hypertension, Supraventricular tachycardia, Ventricular arrhythmias (premature ventricular contractions, ventricular tachycardia/fibrillation).
Dopamine: Dosage and Administration - 1. May use: \_\_\_ Formula. a. \_\_\_ b. \_\_\_ c. \_\_\_
Dosage and Administration -
1. May use: Duggan Formula.
a. Estimate the patient’s weight in pounds.
b. Cross off the 3rd digit of the weight in pounds to
get gtts/minute, e.g. 183 pounds = 18.
c. At 18 gtts/minute, you will be administering 5-6
mcg/kg/minute.
Dopamine:
Dosage and Administration -
1. May use: ___
Dosage and Administration -
1. May use: Patient weight in kg. (See chart - Microdrops per minute (or mL/hr). 400 mg in 250 mL NS (1600 mcg/mL))