In late stages of dementia, a phenomenon called "sun downing" occurs, in which cognitive disturbances tend to
A. Improve as the day goes on
B. Become worse toward the evening
C. Fluctuate during the course of the day
D. Peak mid-day
B
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The content and method of presentation in the critical care unit vary because
a. of the different admitting diagnoses. b. of the uniqueness of each patient's clinical and emotional status. c. all patients are on ventilators and cannot talk. d. patients are heavily sedated and may not comprehend teaching.
Which of the following is stated in a living will?
A) Legal consent regarding healthcare B) Designation of another person as healthcare proxy C) Wishes regarding healthcare if terminally ill D) Medical orders for end-of-life instructions
Which statement most accurately describes the relationship between the hydrogen ion concentration and carbon dioxide concentration in extracellular fluids?
A. Because carbon dioxide is a gas and hydrogen ions are electrolytes, these two substances have no relationship in extracellular fluids. B. The concentrations of hydrogen ions and carbon dioxide are directly related, with an increase or decrease in one always resulting in a corresponding increase or de-crease in the other. C. Carbon dioxide buffers hydrogen ions; thus, these two concentrations are in-versely related to each other. The higher the carbon dioxide concentration, the fewer hydrogen ions are present in that fluid. D. Hydrogen ions and carbon dioxide ions exist in a balanced relationship as a result of their charges. The positively charged hydrogen ions are attracted to the nega-tively charged carbon dioxide ions, forming an electrically neutral substance.
The nurse should implement which interventions for an infant experiencing apnea? Select all that apply
a. Stimulate the infant by gently tapping the foot. b. Shake the infant vigorously. c. Have resuscitative equipment available. d. Suction the infant. e. Maintain a neutral thermal environment.