Which statement describes the measurement of information as defined by the Shannon and Weaver model?
a. The amount of information is measured by the amount of data in the message.
b. The amount of information is measured by the number of meanings that can be assigned to a message.
c. The amount of information is measured by the extent the message decreases entropy.
d. The amount of information is measured by the number of characters used to create the message.
ANS: C
By decreasing entropy one decreases uncertainty. If a coin is thrown into the air, it may land on either of two possible sides, heads up or tails up. Once it lands, the other side of the coin can be determined. The options are coded zero (0) and one (1) and are the basis for building computer code.
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A patient has just begun been receiving skeletal traction and the nurse is aware that muscles in the patient's affected limb are spastic. How does this change in muscle tone affect the patient's traction prescription?
A) Traction must temporarily be aligned in a slightly different direction. B) Extra weight is needed initially to keep the limb in proper alignment. C) A lighter weight should be initially used. D) Weight will temporarily alternate between heavier and lighter weights.
The analysis of a patient's semen indicates the patient could have difficulty impregnating his wife. This patient's semen likely contains what volume of sperm per milliliter?
1. 150 million 2. 100 million 3. 50 million 4. 5 million
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How many milliliters (mL) should the nurse document on the output for the wound drainage? A) 15 mL B) 30 mL C) 45 mL D) 60 mL
Thyroid hormone is contraindicated in patients with ________.
A. thyroid cancer B. thyroid nodules C. goiter D. acute myocardial infarction