An elderly patient with osteoarthritis is experiencing increased pain and stiffness in their right knee.
What pathological condition should the nurse identify as the cause of these symptoms?
Degradation of joint cartilage.
A systemic inflammatory response.
An infectious process in the synovial fluid.
A decrease in bone mineral density.
The Correct Answer is A
Choice A rationale
Osteoarthritis is a joint disease in which the tissues in the joint, including the cartilage, break down over time. The degradation of joint cartilage is the primary pathological condition that leads to the symptoms of osteoarthritis, such as increased pain and stiffness.
Choice B rationale
A systemic inflammatory response is not the primary cause of osteoarthritis. While inflammation can occur in the affected joint, osteoarthritis is not a systemic inflammatory disease like rheumatoid arthritis.
Choice C rationale
An infectious process in the synovial fluid is not typically associated with osteoarthritis. Infections can lead to a different type of arthritis known as septic arthritis.
Choice D rationale
A decrease in bone mineral density is associated with osteoporosis, not osteoarthritis. In osteoarthritis, the issue is primarily with the degradation of cartilage, not a loss of bone density.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Keeping the infant home from daycare for the next two days after vaccination is not necessary unless the child is showing signs of serious side effects, which are rare. Most vaccines have mild side effects such as soreness at the injection site or a mild fever, which should not interfere with the child’s daily activities.
Choice B rationale
Applying a cool, damp cloth or a cool pack to the injection site can help reduce redness, soreness, and/or swelling. This is a common practice recommended by healthcare professionals to alleviate discomfort after vaccination.
Choice C rationale
It is not recommended to administer aspirin to children due to the risk of Reye’s syndrome, a rare but serious condition that can affect the liver and brain. Instead, if the child is uncomfortable or has a fever, parents can consult with a healthcare provider about giving a non-aspirin pain reliever.
Choice D rationale
While any level of fever after vaccination should be monitored, it is not always serious and should not cause panic. Fevers are a common side effect of vaccinations and are usually a sign that the body is building protection against the virus or bacteria in the vaccine. However, if a high fever persists or the child shows signs of an allergic reaction, parents should contact a healthcare provider immediately.
Correct Answer is ["1.32"]
Explanation
Step 1 is to convert the patient’s weight from pounds to kilograms. There are approximately 2.2046 pounds in 1 kilogram. So, the patient’s weight in kilograms is 132 lb ÷ 2.2046 = 59.87 kg.
Step 2 is to calculate the total dose of lorazepam the patient should receive. The prescribed dose is 44 mcg/kg. So, the total dose in micrograms is 44 mcg/kg × 59.87 kg = 2634.28 mcg.
Step 3 is to convert the total dose from micrograms to milligrams. There are 1000 micrograms in 1 milligram. So, the total dose in milligrams is 2634.28 mcg ÷ 1000 = 2.63428 mg.
Step 4 is to calculate the volume of lorazepam solution to administer. The concentration of the solution is 2 mg/mL. So, the volume in milliliters is 2.63428 mg ÷ 2 mg/mL = 1.31714 mL. Therefore, the nurse should administer approximately 1.32 mL of the lorazepam solution, rounding to the nearest hundredth as required.
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