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Chapter 31 - Adrenergic Antagonists |Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

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1. The nurse administers an adrenergic blocking agent in order to prevent release of what neurotransmitter? a. Epinephrine b. Norepinephrine c. Serotonin d. Gamma-aminobutyric acid (GABA) Ans: B Feedback: Adrenergic blocking agents prevent norepinephrine from being released from the adrenal medulla or from the nerve terminal from activating the receptor, which blocks sympathetic nervous system effects. Epinephrine, serotonin, and GABA are not associated with this process. 2. What med...

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Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch) |Chapters 26-30|

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Chapter 26 Narcotics, Narcotic Antagonists, and Antimigraine Agents Chapter 27 General and Local Anesthetic Agents Chapter 28 Neuromuscular Junction Blocking Agents Chapter 29 Introduction to the Autonomic Nervous System Chapter 30 Adrenergic Agonists

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Chapter 32 - Cholinergic Agonists |Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

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1. The patient has had cevimeline (Evoxac) prescribed. What would be an appropriate dosing schedule for the nurse to administer this drug? a. Once a day b. Twice a day c. Three times a day d. Every 4 hours Ans: C Feedback: Cevimeline should be given three times a day with meals. Once or twice a day dosing would cause a decrease in therapeutic effects of the drug and every 4 hours could lead to toxicity. 2. A student asks the pharmacology instructor to describe the function of a choli...

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Chapter 30 - Adrenergic Agonists Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

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1. A patient is admitted to the emergency department in shock. Isoproterenol (Isuprel) is administered. What would the nurse expect the effect of the isoproterenol to be? a. Increased blood pressure b. Decreased blood pressure c. Increased body temperature d. Decreased heart rate Ans: A Feedback: Isoproterenol stimulates beta-adrenergic receptors. Blood pressure is increased and heart rate is increased. Body temperature should not be affected. 2. What action do sympathomimetic drugs ...

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Chapter 28 - Neuromuscular Junction Blocking Agents |Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

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1. According to the sliding filament theory, what is the initial action in a muscle contraction? a. Troponin is freed and prevents actin and myosin from reacting with each other. b. Calcium binds to troponin, which causes the release of actin and myosin binding sites. c. Actin and myosin molecules react with each other sliding along the filament and making it shorter. d. Muscle filament relaxes or slides back to the resting position. Ans: C Feedback: Actin and myosin molecules react wi...

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Chapter 29 - Introduction to the Autonomic Nervous System Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

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1. The central nervous system (CNS) cells, where the impulses for the sympathetic nervous system (SNS) originate, are located where? a. Cranium and sacral area of the spinal cord b. Hypothalamus and the medulla c. Nerve membranes d. Thoracic and lumbar sections of the spinal cord Ans: D Feedback: The SNS is also called the thoracolumbar system because the CNS cells, where the impulses for the SNS originate, are located in the thoracic and lumbar sections of the spinal cord. The parasymp...

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Chapter 27 - General and Local Anesthetic Agents |Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

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1. To decrease sympathetic stimulation in balanced anesthesia type of what agent would be used? a. Antihistamines b. Antiemetics c. Narcotics d. Sedative-hypnotics Ans: D Feedback: Sedative-hypnotics relax the patient, facilitate amnesia, and decrease sympathetic stimulation. Antihistamines decrease the chance of allergic reaction and help dry secretions. Antiemetics decrease the nausea and vomiting associated with gastrointestinal (GI) depression. Narcotics aid in the analgesic and sed...

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Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch) |Chapters 21-25|

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Chapter 21 Antidepressant Agents Chapter 22 Psychotherapeutic Agents Chapter 23 Antiseizure Agents Chapter 24 Antiparkinsonism Agents Chapter 25 Muscle Relaxants

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Chapter 25 - Muscle Relaxants |Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

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1. The nurse is teaching a class on muscular coordination and explains it is the movement of what electrolyte that contributes to the process of muscle contraction and relaxation? a. Calcium b. Chloride c. Magnesium d. Hydrogen Ans: A Feedback: Calcium is released from the sarcoplasmic reticulum, which leads to the binding of calcium with troponintropomyosin. This leads to contraction of the muscle fiber. The calcium pump then moves calcium back into the sarcoplasmic reticulum, which le...

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Chapter 26 - Narcotics, Narcotic Antagonists, and Antimigraine Agents |Test Bank - Focus on Nursing Pharmacology (8th Edition by Karch)

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1. A geriatric patient received a narcotic analgesic before leaving the post-anesthesia care unit to return to the regular unit. What is the priority nursing action for the nurse receiving the patient on the regular unit? a. Administer a non-steroidal anti-inflammatory drug. b. Encourage fluids. c. Create a restful, dark, quiet environment. d. Put side rails up and place bed in low position. Ans: D Feedback: Older patients are more susceptible to the central nervous system effects of na...

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