Autonomic Nervous System and Pharmacology

Information about Autonomic Nervous System and Pharmacology

Published on March 3, 2009

Author: PenderNP

Source: authorstream.com

Content

Autonomic Nervous System and Pharmacology : Autonomic Nervous System and Pharmacology 4 groups : 4 groups Effects on the Sympathetic Nervous System Stimulate Inhibit Effects on the Parasympathetic Nervous System Stimulate (same effects as inhibiting SNS) Inhibit (same effects as stimulating SNS) Classifications : Classifications Sympathomimetics or Adrenergic agents Sympatholytics or Adrenergic antagonists Parasympathomimetics or Cholinergic agents Parasympatholytics or Anticholinergics or muscarinic blockers Sympathomimetics or Adrenergic Agents-Primary Uses : Sympathomimetics or Adrenergic Agents-Primary Uses Alpha 1 receptor: Nasal congestion or hypotension; dilate pupils for ophthalmic exams 2 receptor: Hypertension Beta 1 receptor: Cardiac arrest, HF, and shock 2 receptor: Asthma and premature labor Alpha 2 distinction : Alpha 2 distinction http://www.cvpharmacology.com/vasoconstrictor/alpha-agonist.htm Adverse Effects : Adverse Effects Seizures Tremors Dizziness Light sensitivity Dry mouth Hypertension Tachycardia Dysrhythmias Worsening of asthma Anorexia, Nausea, Vomiting Increased glucose Urinary Retention Adrenergic agonists Nursing process : Adrenergic agonists Nursing process Assessment: Goals Implementation Client Teaching Cholinergic Blockers : Cholinergic Blockers Mechanism: inhibit PNS Uses: treat peptic ulcer, IBS, increase HR, preanesthetic, asthma, dilate pupils Adverse: CNS stimulation, photophobia, dry eyes & mouth, decreased sweating, tachycardia, urinary retention Prototype: atropine Overdose of Cholinergic Blockers : Overdose of Cholinergic Blockers Fever, visual changes, difficulty swallowing, psychomotor agitation, hallucinations. Hot as hades, blind as a bat, dry as a bone, mad as a hatter. Adrenergic Antagonists Uses : Adrenergic Antagonists Uses HTN, including severe Dysrhthmias Angina Glaucoma Heart Failure Benign Prostatic Hypertrophy (BPH) Alpha Adrenergic Blockers : Alpha Adrenergic Blockers Adverse effects Orthostatic hypotension Reflex tachycardia Nasal congestion Impotence Increased Parasympathetic activity Beta Adrenergic Blockers : Beta Adrenergic Blockers Beta Blockers B1 B2 Therapeutic effects on cv system Decrease rate and force of contraction of heart and slow electriccal conduction through av node B1 (atenolol ex) cardioselective little effect on noncardiac tissue Nonselective such as propranolol has more SE Most common use is tx of htn Nursing-Adrenergic Blockers : Nursing-Adrenergic Blockers Assessment Goals Implementation Evaluation Cholinergic Agents (Parasympathomimetics) : Cholinergic Agents (Parasympathomimetics) Primary Uses: Increase urination Treatment of dry mouth Glaucoma MG Alzheimers Anticholinergic OD

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