Which of these statements best describes the concept of half-life?
It is the time it takes for half of the drug in the body to reach the receptors.
It is the time it takes for the amount of drug in the body to be decreased by half. C) It is time it takes for half of the drug in the body to be distributed.
It is the time it takes for the shelf-life of the drug to be decreased by half.
The Correct Answer is B
a) This statement inaccurately describes the concept of half-life. Half-life refers to the time it takes for the drug concentration in the body to decrease by half, not the time it takes for the drug to reach receptors.
c) This statement inaccurately describes the concept of half-life. Half-life is not related to the distribution of the drug in the body.
d) This statement inaccurately describes the concept of half-life. Half-life is not related to the shelf-life of the drug.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","E"]
Explanation
a) Advising the client to avoid prolonged immobility and participate in exercise activities is a general health recommendation but not specifically related to warfarin therapy.
b) Safe and effective warfarin therapy requires rigid adherence to the dosing schedule to maintain therapeutic anticoagulation levels.
c) Monitoring PT/INR frequently initially and then regularly helps assess the effectiveness and safety of warfarin therapy.
d) Encouraging the use of NSAIDs is not recommended with warfarin due to the increased risk of bleeding.
e) Instructing the client to avoid foods high in Vitamin K is important because Vitamin K can interfere with the anticoagulant effects of warfarin.
Correct Answer is ["B","C","E"]
Explanation
A) This is not a risk of estrogen/progestin therapy. In fact, estrogen/progestin therapy can help prevent osteoporosis and fractures by increasing bone density and strength.
B) This is a possible risk of estrogen/progestin therapy. Some studies have suggested that taking estrogen/progestin therapy for more than five years may increase the risk of ovarian cancer. However, other studies have not found this association
C) This is a serious risk of estrogen/progestin therapy. Estrogen/progestin therapy can increase the risk of blood clots, which can lead to stroke or heart attack. The risk is higher for women who smoke, have high blood pressure, diabetes, or a history of cardiovascular disease.
D) This is not a risk of estrogen/progestin therapy. In fact, some studies have suggested that estrogen/progestin therapy may reduce the risk of colon cancer by lowering inflammation and promoting regular bowel movements.
E) This is another serious risk of estrogen/progestin therapy. Deep vein thrombosis (DVT) is a condition where a blood clot forms in a deep vein, usually in the leg. It can cause pain, swelling, and redness in the affected area. If the clot breaks off and travels to the lungs, it can cause a life threatening condition called pulmonary embolism (PE). Estrogen/progestin therapy can increase the risk of DVT and PE by making the blood more likely to clot
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today