Ami got an hiv test, and the results were negative. to make sure the results were accurate, she went back three weeks later for another test. she did not have sexual relations, and there were no life changing events between tests. this time, her test was positive. which statement best explains why ami’s tests showed different results? the tests were done too close together, and there must be more time between each test. ami’s second test must have been contaminated by another source. hiv tests often show false positives so it is likely that ami does not have hiv. ami may have recently contracted hiv and had the first test done too early.

Ami may have recently contracted HIV and had the first test done too early.

There is  a window period between person's exposure to HIV and when a test can definitely tell positive HIV infection. The window period varies from person to person and is also different depending on type of HIV test.

20 times a minute is usually the average respritory rate of an adult. additionally the patient is breathing on his own, is clearly maintaining his airway, and is intaking a sufficient amount of air. you shouldn't use a bag valve mask, cpap, or other form of positive pressure ventilation, unless the patient has lost control of his airway, and is not breathing (apneic) or has rapid breathing or slow and shallow respirations. this patient would most likely and should be put on an non-rebreather mask or nrb attached to 100% high flow oxygen at 15 l/min. don't use a nasal cannula, as the amount of oxygen it provides is limited with a rate of 6 l/min.

You would modify how often you work out in reps and sets and also modify calorie intake