The most clinically significant ICP waveform is
a. A waves.
b. B waves.
c. C waves.
d. D waves.
A
A waves are the most clinically significant of the three types. They usually occur in an already elevated baseline intracranial pressure (ICP) (>20 mm Hg) and are characterized by sharp increases in ICP of 30 to 69 mm Hg, which plateau for 2 to 20 minutes and then return to baseline. B waves appear to reflect fluctuations in cerebral blood. C waves are small, rhythmic waves that occur every 4 to 8 minutes at normal levels of ICP. They are related to normal fluctuations in respiration and systemic arterial pressure.
You might also like to view...
What would be a barrier to effective health care delivery from Western health care practitioners to patients of the Hispanic culture?
A. The time phenomenon causing conflicts with appointment promptness B. Insistence of the Hispanic population on using folk healers C. The ability to pay for provided services D. Refusal to accept that some medical treatments may be more effective than folk treatments
You are presenting patient teaching to a 48-year-old male who was just diagnosed with type 2 diabetes mellitus
The patient has a BMI of 35 and leads a sedentary lifestyle. You give the patient information on the risk factors for his diagnosis and talk with him about changing the behaviors of diet and exercise. You know that further patient teaching is necessary when your patient tells you what? A) "I need to start slow on an exercise program approved by my doctor." B) "Over 80% of type 2 diabetes could be prevented if the risk factors were eliminated." C) "There is nothing that can be done anyway; chronic diseases cannot be prevented." D) D "The major causes of chronic diseases are known."
The nurse administers sulfamethoxazole and trimethoprim (Bactrim) for a desirable patient response derived from the combination of agents. Which type of medication effect does the nurse anticipate?
a. Tolerance b. Synergistic c. Dependence d. Subtherapeutic
A decrease in renal function is associated with:
A. a decrease in the intensity of the drug action. B. an increase in the rate of drug excretion. C. a decrease in the rate of drug metabolism. D. an increase in the duration of the drug action.