Critical Care-Rhythms & Interventions

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Sinus Bradycardia
*definition
*intervention!!

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Terms in this set (26)

Sinus Bradycardia
*definition
*intervention!!

-Definition: heart rate less than 60 bpm

-If the pt is symptomatic:
*Pacing (aka a pacemaker)

*Atropine (0.5mg q3-5mg given iv injectin quickly) (DRUG OF CHOICE)

*Epinephrine (given if atropine isn't effective)
*Dopamine: (if low BP accompanies bradycardia, give this med via infusion.
*supplemental oxygen
*IV fluids

Bradycardia: causes, s/s

-Myocardial Infarction
-surgical procedures
-Medications

-s/s:
*syncope, dizziness
*lightheadedness, confusion
*paleness, dyspnea

Atropine

-indication:

Sinus Tachycardia: definition, causes, S/S

Definition: HR greater than 100, regular R-R rhythm

-Causes:
*sympathetic nervous system: anxiety, stress, pain, fever, exercise

*drugs:
` caffeine,
`thyroid meds (Synthroid),
`atropine
`dopamine
`alcohol`
`nicotine
`

*compensatory response to decreased CO or BP:
`shock
`infection
`myocardial infarction
`heart failure

-S/S: fatigue, weaknss, sob, palpitation, chest pain

Sinus Tachycardia: Interventions

-tx the underlying cause
*ex: if the tachycardia is caused by hemorrhage, RN must stop the bleeding and replace the blood & fluid.

-Betablockers

-Digoxin (drug of choice)

-Calcium channel blockers