A nurse is reviewing the BUN and creatinine levels of an older adult patient with chronic kidney disease. The nurse should anticipate which of the following findings?
BUN 8 mg/dL and creatinine 0.7 mg/dL
BUN 45 mg/dL and creatinine 8 mg/dL
BUN 23 mg/dL and creatinine 1.0 mg/dL
BUN 10 mg/dL and creatinine 0.3 mg/dL
The Correct Answer is B
Choice A reason:
A BUN level of 8 mg/dL and a creatinine level of 0.7 mg/dL are within normal ranges for a healthy individual without kidney disease. In chronic kidney disease (CKD), we would expect these values to be elevated due to the kidneys' reduced ability to filter waste products from the blood.
Choice B reason:
A BUN level of 45 mg/dL and a creatinine level of 8 mg/dL are significantly higher than the normal range, which is consistent with impaired kidney function seen in CKD. These elevated levels indicate that the kidneys are not effectively filtering urea and creatinine from the blood, leading to their accumulation.
Choice C reason:
A BUN level of 23 mg/dL and a creatinine level of 1.0 mg/dL could be seen in the early stages of CKD. While the creatinine level is within the normal range, the BUN level is slightly elevated, which may suggest a decline in kidney function.
Choice D reason:
A BUN level of 10 mg/dL and a creatinine level of 0.3 mg/dL are both below the normal range. This is an unlikely finding for a patient with CKD, as kidney impairment typically leads to increased levels of these substances in the blood.
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Correct Answer is A
Explanation
Choice a) Raloxifene:
Raloxifene is part of a class of drugs known as selective estrogen-receptor modulators (SERMs). It works by imitating the beneficial effects of the hormone estrogen on your bones, helping to prevent bone loss and improve density. Therefore, it is used in the prevention and treatment of osteoporosis.
Choice b) Calcitonin:
Calcitonin is a hormone that a person’s thyroid gland produces. It helps regulate the amount of calcium in the body. For the treatment of postmenopausal osteoporosis, scientists typically extract calcitonin from salmon. This is because salmon calcitonin has a much higher potency than human calcitonin. Osteoclasts are cells in the body that degrade bone. Calcitonin can inhibit osteoclasts. This helps slow the loss of bone density and increases bone mass, hindering the progression of osteoporosis.
Choice c) Allopurinol:
Allopurinol is primarily used to treat gout and certain types of kidney stones. It is not typically used in the prevention or treatment of osteoporosis.
Choice d) Levothyroxine:
Levothyroxine is used to treat hypothyroidism (underactive thyroid). It is not typically used in the prevention or treatment of osteoporosis. However, if you are prescribed levothyroxine you should have regular blood tests, at least once a year, to ensure your thyroid hormone levels are not too high. Continuous high thyroid hormone levels may lead to developing or worsening of low bone density and osteoporosis.
Correct Answer is D
Explanation
Choice A reason:
While gargling with warm saline can provide symptomatic relief for a sore throat, it does not address the underlying bacterial infection. Therefore, it is not the priority action once a diagnosis of group A streptococcus has been confirmed.
Choice B reason:
Identifying close contacts is important for public health tracking and potentially preventing the spread of the infection. However, the immediate priority for the client is the initiation of treatment to address the infection.
Choice C reason:
Taking antipyretics can help manage fever and provide comfort to the client. While managing symptoms is important, it is secondary to initiating antibiotic therapy, which addresses the cause of the symptoms.
Choice D reason:
The priority action is to notify the client to return to the clinic for initiation of antibiotic therapy. Group A streptococcus is a bacterial infection that requires antibiotics for treatment. Prompt initiation of antibiotics is crucial to prevent complications and promote recovery.