C. They have to drink a unlimited amount
Answer:
Looks at the place on the body where he or she is touched.
Answer: Double blind clinical trial
Explanation:
The situation that is seen here is double blind clinical trail in which neither the participant nor the practitioner knows who is receiving the treatment.
This is used to prevent biasing in the experiment which is caused due to demand characteristics or placebo effect.
Here, in this situation the dog handlers and the experimental observer both were blinded to identify the breath sample.
For doctors
and nurses to obtain an accurate result during a complete physical examination
of a patient, the necessary equipment and supplies should be prepared before
the procedure. Here’s a list of the things that should be present in getting a
patient’s blood and urine specimens:
For urine
specimen:
<span>-
</span>Sterile specimen cup = obtained from the
laboratory
<span>-
</span>Cotton ball = to clean the area before
urinating to avoid entry of external bacteria
For blood
specimen:
<span>-
</span>Sterile syringes
<span>-
</span>Blood culture bottles
<span>-
</span>Alcohol swab = to clean the area where the blood
sample will be taken
<span>-
</span>Sterile cotton balls
<span>-
</span>Gloves
<span>-
</span><span>Tourniquet</span>
