单项选择题

A client seeks care for low back pain of 2 weeks' duration. Which assessment finding suggests a herniated intervertebral disk

A．Pain that radiates down the posterior thigh.
B．Back pain when the knees are flexed.
C．Atrophy of the lower leg muscles.
D．Positive Homans' sign.

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单项选择题

After striking his head on a tree while falling from a ladder, a young man is admitted to the emergency department. He's unconscious and his pupils are nonreactive. Which intervention would be the most dangerous for the client

A．Give him a barbiturate.
B．Place him on mechanical ventilation.
C．Perform a lumbar puncture.
D．Elevate the head of his bed.

单项选择题

Which of the following would not be an indication of placental detachment

A．An abrupt lengthening of the cord.
B．An increase in the number of contractions.
C．Relaxation of the uterus.
D．Increased vaginal bleeding.

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