The epidemiologic triangle is particularly useful as a model to explain infectious diseases such as measles and HIV, because it examines
1. Biologic, sociologic, and physical dimensions.
2. Host, agent, and environment.
3. Person, place, and time.
4. Multiple risk factor causality.
ANS: 2
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A nurse is aware of the central role that erythropoietin plays in the initiation of erythropoiesis. Which of the following individuals would be likely to require administration of exogenous erythropoietin?
A) A woman who experienced a postpartum hemorrhage after spontaneous vaginal delivery B) A child who experienced severe blood loss during a motor vehicle accident C) A woman who has been diagnosed with hepatic encephalopathy after a long history of alcohol abuse D) A man with a diagnosis of acute renal failure secondary to type 1 diabetes
A woman complains of having heavier bleeding than normal during her menstrual periods. The nurse documents this subjective information in the client's chart as
a. metrorrhagia c. polymenorrhea b. menorrhagia d. hypomenorrhea
Where is the cerebrospinal fluid (CSF) produced?
a. Arachnoid villi b. Choroid plexuses c. Ependymal cells d. Pia mater
Which statement indicates the patient has a correct understanding of metastasis? The most com-mon route of metastasis is through the blood vessels and:
a. lung tissue. b. body cavities. c. lymphatics. d. connective tissues.