The nurse takes the patient's pulse and finds a regular rate at 44 beats/min. What area of the heart is controlling this patient's heart rate?
A) The atrioventricular (AV) node
B) The bundle of His
C) The Purkinje fibers
D) The sinuatrial (SA) node
D
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The SA node generates an impulse about 90 to 100 times a minute, the AV node about 40 to 50 times a minute, and the complex ventricular muscle cells only about 10 to 20 times a minute.
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A nurse assesses a client with an injury to the medulla. Which clinical manifestations should the nurse expect to find? (Select all that apply.)
a. Loss of smell b. Impaired swallowing c. Visual changes d. Inability to shrug shoulders e. Loss of gag reflex
The nurse is preparing to give isoproterenol parenterally. Before starting to administer the drug, what does the nurse ensure is on hand in case a severe reaction occurs?
A) An alpha-adrenergic blocker B) An alpha-adrenergic stimulant C) A beta-adrenergic stimulant D) A beta-adrenergic blocker
The basic underlying pathophysiology of acute respiratory distress syndrome results from:
a. a decrease in the number of white blood cells available. b. damage to the right mainstem bronchus. c. damage to the type II pneumocytes, which produce surfactant. d. decreased capillary permeability.
The providers at a clinic are interested in improving the amount of family history collected on each client but do not wish to extend visit times. Which statement by the nurse is most helpful?
1. "We could have the office manager ask some questions while the clients are in the waiting area." 2. "We could have new clients come in 30 minutes before their appointment time to complete a questionnaire." 3. "We could hire a secretary to complete these histories on new clients." 4. "We could ask a few questions at every visit."