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17 Cards in this Set
- Front
- Back
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Autonomic Nervous System
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• Sympathetic-adrenergic function→norep NT
• Parasympathetic-cholinergic→Ach NT |
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Autonomic Drugs
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• Stimulate or block (inhibit) Symp or Para system
• Effect entire body • The effect depends on symp or para involved and if it is stimulated or inhibited |
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Sympathomimetic
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• Mimics the sympathetic nervous system
• Adrenergic • Alpha adrenergic agonists-stimulate the alpha receptor • Beta adrenergic agonists-stimulate the beta receptor |
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Parasympathomimetic
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• Mimics para nervous system
• Cholinergic • Cholinomimetic |
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Sympatholytic
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• Block (inhibit) the sympathetic NS
o Antiadrenergic o Alpha-andrenergic blockers (alpha receptor block) o Beta-adrenergic blockers (beta block) |
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Parasympatholytic
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• Block (inhibit) the parasympathetic NS
o Anti-cholinergic (block Ach) o Cholinergic blockers (block Ach receptor) |
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Adrenergic effects
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• Mimic sympathetic effects (mimic ep/norep)
• HR up o Positive Chromotropic (HR up over time) o tachycardia • Increase heart contraction o Positive isotropic • Peripheral blood vessels vasoconstrict o →blood away GI tract and non essential organs→vital organs heart and brain o blood to muscles→fight or flight o cold/pale • bronchodilitation-breathe better • pupils dilate • increase in blood sugar, fatty acids (coronary artery disease, sweat, blood coagulation (clotter→MI, CBA/stroke) |
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Adrenergic drug effect on the alpha receptors
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• THINK arms and legs
o Peripherally vasoconstrict in arms and legs • →pale, cold |
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adrenergic effect on beta 1 receptors
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• THINK heart
o Increase HR (chromotropic) o Increase heart contractility |
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Adrenergic effect on beta 2 receptors
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• THINK lungs
o bronchodiitation |
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Catecholamines
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• Subtype of adrenergics
• PROTOTYPE: epinephrine • Use IV |
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Uses for catecholamines
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• Cardiac arrest (profound brachycardia)
o Ep→beta 1→bring HR back within normal limits • Hypotention o Ep→beta 1→increase BP • Shock o →increase BP • Bronchial asthma or obstructive pulmonary disease o Ep→beta 2→bronchodilate→better breathing |
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Non-catecholamines
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• Sub category for adrenergics
• Similar to catecholamines • Effects last longer • Effective orally, some inhalers • OTC meds |
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Adverse drug effects for adrenergics
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• Cardiac arrhythmias
• Angina • Hypertension • Cerebral hemmorage • Anxiety, nervousness, insomnia • Can become tolerant |
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Contradictions to adrenergic drugs
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• Do NOT use if
o Tacky arrhythmia • Will cause worse cardiac arrhythmia o Angina o Hypertension o Cerebral vascular disease o Allergy |
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Adrenergic sub groups
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Catecholamines
non catecholamines |
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Nursing Assessment and interventions for adrenergics
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• Diabetes-potential increase blood sugar levels
• Peripheral IV-if it infiltrates→ep in tissues around→vasoconstriction→neucrosis Taylor to maintain BP Change rate slowly Piggy back in and not primary line • Assess respiratory and cardiovascular function before during and after • Promote sleep • Educate patient that epi pen is SHORT and not a solution |
