The most accurate statement is Inclusion and exclusion criteria are always needed in some form.
Inclusion criteria are the prospective subjects characteristics that should be taken into consideration in the study.
Exclusion criteria are set of predefined definitions commonly used to identify subjects who will not be included or those characteristics that disqualify prospective subjects for the study to be included
Answer: you can tell if they are limping or walking strange and or have a swelled up ankle they probably sprained it if you are unsure you can always ask an adult or professional for help.
You could say something along the lines of:
"Hey, Friend, what's so good about weed? Why are you always smoking it?"
If he's smoking it for medical purposes, then just drop it, but if it's illegal and he's doing it to "look cool", then I would further ask questions about it.
Answer:
False, it is preferable to use disposable needles since AIDS is a permanent disease and that is spread through the contact of blood without ebargo, the needles can be sterilized in the following way since it is not feasible to clean them with chlorine for 10 to 15 seconds. It is advisable
The best way to do this is to "BOIL IT IN WATER FOR 15 MINUTES".
Other ways, such as burning the tip with a lighter or disinfecting with alcohol, iodine ... are very little recommended. The worst is to burn the tip of the needle with a lighter, because the soot tip gets dirty and then we will introduce it under the skin with the risk of infection.
30 years ago the needles and injection syringes were boiled with water with a small metal box. A flame with alcohol was used that burned and heated a little water until it was boiled.
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