A) Tetracycline is one of the broad spectrum antibiotics which are effective against a large number of harmful micro-organisms.
B) Streptomycin is highly effective against micro-organisms which cause tuberculosis.
C) Penicillin has a narrow spectrum and certain persons are sensitive to it.
D) Penicillin may be administered without testing the patients for sensitivity to it.
Correct Answer: D
Solution :
Penicillin has a narrow spectrum and is effective only against disease caused by various cocci and some gram positive bacteria. Some person have allergy to penicillin. Hence, it is very essential to test the sensitivity of the patient by giving a test dose before giving the full dose.
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