Pharmacology for Nursing - Unit II
50 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the functional unit of the nervous system?

  • Neuron (correct)
  • Synapse
  • Glial cell
  • Axon

    • Which branch of the nervous system does the Autonomic Nervous System (ANS) belong to?

  • Somatic Nervous System
  • Enteric Nervous System
  • Peripheral Nervous System (correct)
  • Central Nervous System

    • What type of receptors are involved in the autonomic nervous system?

  • Dopaminergic receptors
  • Adrenergic receptors (correct)
  • Histaminergic receptors
  • Serotonergic receptors

    • Which of these functions is NOT associated with the autonomic nervous system?

    <p>Controlling voluntary muscle movements</p> Signup and view all the answers

    What role does the autonomic nervous system play in muscle contraction?

    <p>It primarily affects smooth and cardiac muscles</p> Signup and view all the answers

    What type of impulses are typically transmitted through neurons?

    <p>Electrical impulses</p> Signup and view all the answers

    Which of the following best describes the Autonomic Nervous System?

    <p>It regulates involuntary responses</p> Signup and view all the answers

    Which statement about neurotransmitters is correct?

    <p>They are used to transmit impulses between neurons</p> Signup and view all the answers

    What is a primary function of the autonomic nervous system (ANS)?

    <p>Regulate and integrate the body's internal functions</p> Signup and view all the answers

    Which receptors are activated to cause pupil dilation?

    <p>Alpha1 receptors</p> Signup and view all the answers

    What is a key difference between the sympathetic and parasympathetic branches of the ANS?

    <p>The location of nerve ganglia</p> Signup and view all the answers

    Which pharmacological action is associated with sympathomimetic drugs?

    <p>Increase blood pressure</p> Signup and view all the answers

    What action is associated with cholinergic receptors?

    <p>Enhance bronchial smooth muscle activity</p> Signup and view all the answers

    Which hormone is primarily responsible for increasing heart rate during stress?

    <p>Epinephrine</p> Signup and view all the answers

    Which of the following actions does the parasympathetic nervous system promote?

    <p>Increased digestive activity</p> Signup and view all the answers

    Which condition could be treated with sympatholytic drugs?

    <p>Hypertension</p> Signup and view all the answers

    What is a common adverse reaction associated with adrenergic drugs?

    <p>Tachycardia</p> Signup and view all the answers

    Which of the following neurotransmitters is primarily involved in the sympathetic nervous system response?

    <p>Norepinephrine</p> Signup and view all the answers

    Which nursing consideration is important for patients receiving ANS drugs?

    <p>Monitor for changes in blood pressure</p> Signup and view all the answers

    Which class of drugs acts by stimulating the parasympathetic nervous system?

    <p>Parasympathomimetics</p> Signup and view all the answers

    What effect does stimulation of beta1 adrenergic receptors have on the heart?

    <p>Increased myocardial contractility</p> Signup and view all the answers

    What physiological change is directly associated with adrenergic response?

    <p>Increased lipolysis</p> Signup and view all the answers

    What effect does stimulation of cholinergic nerves have on the urinary bladder?

    <p>Induces relaxation</p> Signup and view all the answers

    Which receptors are primarily involved in pupil constriction?

    <p>Muscarinic receptors</p> Signup and view all the answers

    Which effect is associated with stimulation of the sympathetic nervous system (SNS)?

    <p>Increased peripheral resistance</p> Signup and view all the answers

    What is the effect of sympathomimetic drugs?

    <p>Mimic sympathetic nervous system effects</p> Signup and view all the answers

    Which of the following is a side effect of increased norepinephrine levels due to adrenergic drug use?

    <p>Hypertension</p> Signup and view all the answers

    What role do nicotinic receptors play in the body?

    <p>Stimulate muscle contraction</p> Signup and view all the answers

    What is the primary action of muscarinic receptors on the gastrointestinal (GI) tract?

    <p>Stimulate GI contractions</p> Signup and view all the answers

    Which of the following conditions could be treated using sympathomimetic drugs?

    <p>Cardiac arrest</p> Signup and view all the answers

    What is a potential consequence of mixing alpha and beta-adrenergic agonists with OTC preparations?

    <p>Increased risk of hypertension</p> Signup and view all the answers

    Which of the following anatomical locations contains nicotinic receptors?

    <p>Skeletal muscle</p> Signup and view all the answers

    What type of neurotransmitter is involved with muscarinic effects?

    <p>Acetylcholine</p> Signup and view all the answers

    Which of these effects is closely associated with adrenergic receptor stimulation?

    <p>Pupil dilation</p> Signup and view all the answers

    What is the primary physiological role of muscarinic receptors in sweat glands?

    <p>Increase sweat production</p> Signup and view all the answers

    Which situation would most likely result from increased cholinergic activity?

    <p>Constricted bronchi</p> Signup and view all the answers

    What is the effect of combining adrenergic agonists with adrenergic antagonists?

    <p>Decreased effectiveness of adrenergic agonists</p> Signup and view all the answers

    Which of the following substances increases the risk of overstimulation when taken with adrenergic agonists?

    <p>Guarana</p> Signup and view all the answers

    What is a primary characteristic of sympatholytic drugs?

    <p>They block the effects of the sympathetic nervous system</p> Signup and view all the answers

    What is the action of drugs that bind primarily to alpha-receptors?

    <p>Decrease heart rate</p> Signup and view all the answers

    Which of the following medications is used to treat hypertension and heart failure?

    <p>Labetalol</p> Signup and view all the answers

    What is a common side effect of using adrenergic agonists?

    <p>Increased blood pressure</p> Signup and view all the answers

    How do direct-acting cholinergic agonists work?

    <p>They occupy acetylcholine receptor sites</p> Signup and view all the answers

    Which of the following conditions would contraindicate the use of cholinergic agonists?

    <p>Asthma</p> Signup and view all the answers

    What is the primary role of parasympatholytic agents?

    <p>Block the effects of acetylcholine</p> Signup and view all the answers

    Which medication is used as a diagnostic agent for myasthenia gravis?

    <p>Edrophonium</p> Signup and view all the answers

    What is one effect of drugs that block the muscarinic acetylcholine receptors?

    <p>Pupil dilation</p> Signup and view all the answers

    Which of these medications is indicated for open-angle glaucoma?

    <p>Timolol</p> Signup and view all the answers

    What mechanisms prevent norepinephrine from activating adrenergic receptors in sympatholytic drugs?

    <p>Competitive inhibition</p> Signup and view all the answers

    What is a notable side effect of atropine, a common parasympatholytic drug?

    <p>Decreased urination</p> Signup and view all the answers

    Study Notes

    Pharmacology for Nursing - Unit II

    • This unit covers the pharmacology of physiological systems, specifically Chapter 2: Drugs Acting on the Nervous System.
    • The presenter is Dr. Hanan A.M. Youssef, RN, MNS, DNS, Associate Professor in Emergency & Critical Care Nursing at Taif University.
    • The nervous system's major subdivisions are the central nervous system (CNS) and peripheral nervous system (PNS).
    • The autonomic nervous system (ANS) is part of the PNS, further divided into the parasympathetic and sympathetic systems.
    • The functional unit of the nervous system is a neuron, which has dendrites, a cell body, and an axon.
    • Neurotransmitters like acetylcholine (ACh) and norepinephrine (NE) are crucial in nerve impulse transmission.

    Major Subdivisions of the Nervous System

    • Central nervous system (CNS): Includes the brain and spinal cord.
    • Peripheral nervous system (PNS): Includes cranial and spinal nerves, connecting the CNS to other parts of the body.
    • Autonomic nervous system (ANS): Control involuntary functions like heart rate and digestion, and is subdivided into parasympathetic and sympathetic systems.
    • Parasympathetic system: "Rest and digest" system, responsible for slowing heart rate and increasing digestive activity - uses neurotransmitter ACh.
    • Sympathetic system: "Fight or flight" system, responsible for increasing heart rate, blood pressure, and breathing - uses neurotransmitter NE.

    Drugs Acting on the Nervous System

    • Learning objectives include defining key terms, outlining ANS structures and functions, describing actions, indications, pharmacokinetics, contraindications, and interactions of drugs acting on the ANS.
    • The chapter also covers comparison of prototype drugs with other agents in class.
    • Topics include nursing considerations and patient teaching points for drugs acting on the ANS.
    • Key terms include Acetylcholinesterase, Adrenergic receptors (alpha, beta), Belladonna , Cholinergic receptors, Glycogenolysis, Mydriasis , Monoamine Oxidase (MAO), Miosis, Muscarinic Receptors, Nicotinic Receptors, Parasympathomimetic, Parasympathetic System (PNS), Parasympathomimetic, Sympathomimetic Drug, Sympathetic Nervous System (SNS), Sympatholytic
    • Understanding autonomic nervous system (ANS) and its components is fundamental.

    Autonomic Nervous System (ANS)

    • Definition: Involuntary or visceral nervous system
    • Function: Mostly with little conscious awareness, regulates and integrates body's internal functions. Integrates parts of the CNS and PNS
    • Location: Centers for the ANS mainly in the Hypothalamus, Medulla, and Spinal Cord
    • Bodily functions regulated by the ANS: Blood Pressure, Heart Rate, Respiration, Body Temperature, Water Balance, Urinary Excretion, and Digestive Functions.

    Agents for Treating Autonomic Nervous System Disorders

    • Different classes of drugs are used to treat various disorders of the autonomic nervous system.
    • Specific learning objectives for this section are provided.
    • Discusses the use of adrenergic agonists and their indications across different age groups.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    NERVOUS SYSTEM PDF - General Biology

    Description

    Test your knowledge on Chapter 2 of Pharmacology for Nursing, focusing on drugs acting on the nervous system. Learn about the major subdivisions of the nervous system, including CNS, PNS, and their associated functions. This quiz covers key concepts such as neurotransmitters and neuron structure.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser