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 C
Explanation
Choice A reason:
While metabolic syndrome is associated with several health issues, it is not a direct risk factor for hyperthyroidism. Metabolic syndrome typically includes conditions like insulin resistance, hypertension, and dyslipidemia, which are more closely related to diabetes and cardiovascular diseases rather than thyroid function.
Choice B reason:
An iodine deficiency is commonly associated with hypothyroidism, not hyperthyroidism. Iodine is essential for the production of thyroid hormones, and a lack of it can lead to decreased hormone production and an underactive thyroid.
Choice C reason:
Graves' disease is the most common cause of hyperthyroidism. It is an autoimmune disorder where the immune system mistakenly attacks the thyroid gland, causing it to produce too much thyroid hormone. A 35-year-old male with Graves' disease would indeed be at high risk for hyperthyroidism.
Choice D reason:
While a family history of autoimmune disorders can increase the risk of developing autoimmune-related hyperthyroidism, it is not as direct a risk factor as having Graves' disease itself. Autoimmune disorders can have a genetic component, but having a family history does not guarantee the development of hyperthyroidism.
Correct Answer is C
Explanation
Choice A reason:
Bathroom privileges after premedication are not typically restricted unless the premedication impairs the client's ability to ambulate safely. However, it is important to ensure that the client does not fall or injure themselves due to the effects of the medication.
Choice B reason:
Drinking 8 oz of water is generally not advised immediately before surgery due to the risk of aspiration during anesthesia. Clients are usually instructed to fast, which includes not drinking any liquids, for a certain period before surgery.
Choice C reason:
Preoperative diazepam may be administered 30 minutes before surgery to help reduce anxiety and induce sedation. Diazepam is a benzodiazepine that can calm the client and facilitate a smoother induction of anesthesia.
Choice D reason:
Enema administration is not a standard preoperative procedure for a client undergoing a cholecystectomy unless there is a specific indication. The primary focus is on preventing infection and managing pain.
