The healthcare provider changes a patient’s prescription of warfarin from 5.0 mg to 7.5 mg PO for thromboembolic unit.
The medication available on the unit is 2.5 mg per tablet and the patient already received two tablets.
How many additional tablets should the Practical Nurse (PN) administer to complete the newly prescribed dose? (Enter the numerical value only.
If rounding is required, round to the whole number.)
The Correct Answer is ["1"]
Step 1 is: Calculate the total amount of warfarin required. The healthcare provider has prescribed 7.5 mg of warfarin.
Step 2 is: Subtract the amount of warfarin already administered. The patient has already received 2 tablets, each containing 2.5 mg of warfarin, for a total of 5 mg.
Step 3 is: Calculate the additional amount of warfarin required. The total amount required (7.5 mg) minus the amount already administered (5 mg) equals 2.5 mg.
Step 4 is: Determine the number of additional tablets required. Since each tablet contains 2.5 mg of warfarin, the patient should receive 1 additional tablet.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Montelukast does not increase the production of mucus in the lungs. In fact, it helps to reduce inflammation and may be used to prevent asthma attacks.
Choice B rationale
Montelukast is a leukotriene modifier that helps to reduce inflammation and prevent asthma attacks and exercise-induced bronchoconstriction. It works by blocking the action of leukotriene D4 in the lungs resulting in decreased inflammation and relaxation of smooth muscle. This prophylactic limitation of the inflammatory response to allergens is a key function of montelukast.
Choice C rationale
Montelukast does not contract the smooth muscles located in the respiratory tract. Instead, it helps to relax the smooth muscles in the lungs, reducing inflammation and making it easier to breathe.
Choice D rationale
Montelukast does not directly repair damaged tissue in the base of the lungs. Its primary function is to prevent and manage symptoms of asthma and allergies by reducing inflammation in the airways.
Correct Answer is D
Explanation
Choice A rationale: Antiretroviral therapy (ART) effectively suppresses the virus, which strengthens the immune system. This significantly reduces the risk of developing opportunistic infections and other serious complications associated with advanced AIDS.
Choice B rationale: Current medical science does not have a cure for HIV. Antiretroviral medications manage the chronic condition by preventing the virus from replicating, but they do not eliminate it completely.
Choice C rationale: The primary goal of ART is to reduce the plasma HIV RNA to undetectable levels. This prevents further immune system damage and reduces the risk of drug resistance developing.
Choice D rationale: While an undetectable viral load significantly reduces the risk, the medication itself does not provide a 100% guarantee against transmission. Patients must still practice safe behaviors to protect others.
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