Examsrevision

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...

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...

1. Degeneration in neurons that release a neurotransmitter leads to Parkinson’s disease. What neurotransmitter is involved? a. Gamma-aminobutyric acid (GABA) b. Acetylcholine c. Dopamine d. Serotonin Ans: C Feedback: Degeneration of dopamine-releasing neurons in the substantia nigra leads to Parkinson’s disease. When dopamine is decreased in the area of the corpus striatum, a chemical imbalance allows the cholinergic or excitatory cells to dominate. This affects the functioning of t...

1. A group of patients are being screened to see which patients would be the best candidate for a psychotherapeutic drug trial that helps people concentrate longer on activities. Which patient would be best suited for this trial? a. A 28-year-old salesperson who alternates between overactivity and periods of depression b. A 32-year-old hyperactive nursing student who cannot focus long enough to take a test c. A 55-year-old physician who suddenly falls asleep during the day without warning d....

1. A patient is admitted to the emergency department with severe recurrent convulsive seizures. What drug would the nurse expect to be ordered for use in emergency control of status epilepticus? a. Phenytoin (Dilantin) b. Diazepam (Valium) c. Phenobarbital (Luminal) d. Ethosuximide (Zarontin) Ans: C Feedback: Phenobarbital is used for emergency control of status epilepticus. This barbiturate inhibits impulse conduction in the ascending reticular activating system (RAS), depresses the ce...

Chapter 16 Antiinflammatory, Antiarthritis, and Related Agents Chapter 17 Immune Modulators Chapter 18 Vaccines and Sera Chapter 19 Introduction to Nerves and the Nervous System Chapter 20 Anxiolytic and Hypnotic Agents

1. The mental health nursing instructor is talking with the class about depression. What deficiency does the instructor explain will result in depression? a. Epinephrine, norepinephrine, and acetylcholine b. Norepinephrine, dopamine, and serotonin c. Acetylcholine, gamma-aminobutyric acid, and serotonin d. Gamma-aminobutyric acid, dopamine, and epinephrine Ans: B Feedback: A current hypothesis regarding the cause of depression is a deficiency of norepinephrine, dopamine, or serotonin, w...

1. What part of the neuron carries information into the neuron from other neurons? a. Axon b. Dendrite c. Nucleus d. Soma Ans: B Feedback: Dendrites carry information to the nerve and axons; they also carry information from a nerve to be transmitted to effector cells, which are found in muscles, glands, or another nerve. Soma refers to the cell body. The nucleus is the central part of a cell, which is responsible for the cell’s growth, reproduction, and metabolism. 2. When a neuro...

1. The nurse is caring for a patient in a state of hypnosis, which means the patient is in what state? a. A state of extreme sedation in which the person no longer senses or reacts to incoming stimuli. b. A state of tranquility in which the person can be made to do whatever is suggested by others. c. A feeling of tension, nervousness, apprehension, or fear with high levels of awareness. d. A state in which the brain is no longer sending out signals to the body. Ans: A Feedback: Hypnosis...

1. The nursing instructor is discussing immunity with her clinical group. What statement would the instructor make that would be accurate about immunity? a. Active immunity occurs with injected antibodies that react with specific antigens. b. Serum sickness results when the body fights antibodies injected as a form of active immunity. c. Passive immunity occurs when foreign proteins are recognized and the body produces antibodies. d. Passive immunity is limited, lasting only as long as the a...