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","B","C"]
Explanation
Choice A reason:
Herpes zoster lesions are indeed contagious if they are draining. The virus can spread through direct contact with the fluid from the blisters. It is crucial to cover the lesions to prevent spreading the virus to others, especially to those who have never had chickenpox or the vaccine.
Choice B reason:
The development of vesicles, which are small fluid-filled blisters, is a hallmark of herpes zoster. These vesicles typically appear in a band-like pattern on one side of the body and are often accompanied by pain, itching, or tingling before they are visible.
Choice C reason:
Postherpetic neuralgia is a condition where the pain persists in the area of the herpes zoster rash even after the lesions have healed. This can last for weeks, months, or even years and is more common in older adults.
Choice D reason:
Herpes zoster itself is not spread like chickenpox. It occurs when the varicella-zoster virus, which has been lying dormant in the nerve cells, reactivates. While it is possible for someone who has never had chickenpox to develop chickenpox after direct contact with a shingles rash, herpes zoster is not "easily spread" to others in the same way that chickenpox is.
Correct Answer is ["B","C"]
Explanation
Choice A reason:
A temperature of 37.2°C (99°F) is slightly elevated but not necessarily indicative of sepsis. A heart rate of 88/min is within normal limits (60-100/min). This client's signs do not strongly suggest sepsis.
Choice B reason:
A heart rate of 132/min and a respiratory rate of 30/min are both elevated, which can be signs of sepsis. Sepsis can cause an increase in heart rate (tachycardia) and respiratory rate (tachypnea) as the body attempts to maintain adequate blood flow and oxygenation during a systemic infection.
Choice C reason:
A decrease in the level of consciousness combined with a heart rate greater than 130/min could indicate sepsis, as confusion or changes in mental status are common symptoms when the body is fighting a severe infection.
Choice D reason:
Bradypnea, or abnormally slow breathing, is not typically associated with sepsis, which more commonly causes rapid breathing. A WBC count of 10,000/mm³ is at the upper limit of the normal range and does not necessarily indicate sepsis without other symptoms.
Choice E reason:
A temperature of 36°C (96.8°F) is on the lower end of the normal body temperature range and does not suggest fever, which is a common sign of sepsis. A respiratory rate of 16/min is within the normal range (12-20/min) and does not indicate sepsis.
