If you mix 10 gm of active ingredient with 100 gm of ointment base, the resulting concentration is:
A) 10%.
B) 50%.
C) 10.5%.
D) 30%.
A
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When the PR interval consistently exceeds 0.20 seconds in duration and the QRS rate is 60-100, which abnormality is present?
A. second degree AV block B. complete AV block C. asystole D. first degree AV block
Which of the following represents the relationship used by body plethysmography to calculate functional residual capacity?
a. VFRC = ?V ÷ ?P ? (PB – PH2O) c. VFRC = ?V ÷ ?T ? (PB – PH2O) b. VFRC = ?P ÷ ?V ? (PB – PH2O) d. VFRC = (PB – PH2O) ? ?V
During assessment, a patient complains of a cough. When further describing his symptoms, the patient indicates that he has not had any headaches associated with the cough. This type of information is known as pertinent:
A) symptoms. B) positive. C) negative. D) details.
Months after witnessing a brutal crime, Keisha has nightmares about the event. She is jumpy and feels that she may be in danger at any time. She no longer takes interest in the activities she once enjoyed. Keisha is probably experiencing _______ a. anxiety disorder. b. phobias
c. depression. d. post-traumatic stress disorder (PTSD).