Which of the following statements regarding the elderly patient's nervous system is correct?
A. Short-term memory impairment is not simply the result of aging.
B. Parkinson's disease affects the cells in the sensory area of the brain.
C. Reduction in brain size increases the risk of significant head trauma.
D. Alzheimer disease is the most common form of acute delirium.
Answer: C. Reduction in brain size increases the risk of significant head trauma.
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Which type of glass has residual surface compression in excess of 10,000 psi (70 000 kPa)?
A. Laminated glass B. Fully tempered glass C. Heat-strengthened glass D. Ordinary, single-strength annealed glass
Calcium, phosphorus, and magnesium all have which of the following in common?
A. They all exist in circulation as only free or ionized forms. B. They all exist as free or ionized forms, bound to proteins and complexes to radicals to form salts. C. Calcium exist as bound and free only, phosphorus exits only as bound and complexes to radical to form salts and magnesium exists as free or ionized forms, bound to proteins and complexes to radicals to form salts. D. Calcium blood levels are regulated by parathyroid hormones, phosphorus is regulated by testosterone, and magnesium is regulated by insulin.
Which of the following are considered high-complexity tests?
A. Urinalysis, erythrocyte sedimentation rate, blood glucose, and pregnancy B. Tests in clinical cytogenics, histopathology, histocompatibility, and cytology C. Tests in bacteriology, mycobacteriology, virology, and parasitology D. Tests in mycology, immunology, and chemistry E. Tests in immunohematology and hematology
The Medicare limiting charge is the ________ fee that can be charged for a procedure by a nonparticipating provider.
A. lowest B. flexible C. rotating D. highest