Before administering an antibiotic that can cause nephrotoxicity, which laboratory value is most important for the practical nurse (PN) to review?
Serum calcium
Serum creatinine
Hemoglobin and Hematocrit
White blood cell count (WBC)
The Correct Answer is B
Serum creatinine is the most important laboratory value to review before administering an antibiotic that can cause nephrotoxicity. Nephrotoxicity is an alteration in the function of the kidney due to exposure to certain drugs or toxins.
It can be assessed by measuring the glomerular filtration rate (GFR), which is the rate of clearance of a substance from the blood by the kidneys. Serum creatinine is a waste product of muscle metabolism that is freely filtered by the glomeruli and not reabsorbed or secreted by the tubules.
Therefore, it is a reliable indicator of GFR and renal function. An increase in serum creatinine indicates a decrease in GFR and renal function, which may be caused by nephrotoxic drugs.
The other laboratory values are not directly related to nephrotoxicity or GFR:
- Serum calcium: This may be affected by renal function, but it is not a sensitive or specific marker of nephrotoxicity. It may be altered by other factors such as vitamin D, parathyroid hormone, and bone metabolism.
- Hemoglobin and hematocrit: These may be affected by renal function, but they are not sensitive or specific markers of nephrotoxicity. They may reflect the erythropoietin production by the kidneys, which stimulates red blood cell production in the bone marrow. However, they may also be influenced by other factors such as blood loss, hydration status, and iron deficiency.
- White blood cell count (WBC): This is not related to nephrotoxicity or GFR. It may reflect the presence of infection or inflammation, which may be a cause or a consequence of renal impairment, but it is not a direct measure of renal function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
d) Leave the room after offering to return to the client's room at a later time.
This is the action that the PN should implement for a male client who has just been told he has cancer and asks to be left alone. Leaving the room after offering to return later respects the client's autonomy and privacy, while also showing empathy and availability. The client may need some time and space to process the diagnosis and cope with his emotions. The PN should not force the client to talk or stay with him if he does not want to, but should also not abandon him or ignore his needs.
a) Consult with the charge nurse about implementing suicide precautions.
This is not the action that the PN should implement for a male client who has just been told he has cancer and asks to be left alone. Consulting with the charge nurse about implementing suicide precautions is premature and unnecessary, as there is no evidence that the client is suicidal or at risk of harming himself. The client's request to be alone is a normal and understandable reaction to a stressful and life-changing situation, not a sign of suicidal ideation or intent.
b) Sit quietly in the client's room until the client is ready to verbalize his feelings.
This is not the action that the PN should implement for a male client who has just been told he has cancer and asks to be left alone. Sitting quietly in the client's room until he is ready to verbalize his feelings is intrusive and disrespectful, as it goes against the client's wishes and may make him feel uncomfortable or pressured. The PN should not impose their presence or expectations on the client, but should honor his request and give him some privacy.
c) Notify a member of the client's family of the need to come stay with the client.
This is not the action that the PN should implement for a male client who has just been told he has cancer and asks to be left alone. Notifying a member of the client's family of the need to come stay with him is inappropriate and unethical, as it violates the client's confidentiality and autonomy. The PN should not share the client's diagnosis or condition with anyone without his consent, nor should they assume that he wants or needs his family's support at this time. The PN should respect the client's right to decide who he wants to involve in his care and when.
Correct Answer is C
Explanation
Choice A rationale:
Avocados and cheese are not specifically recommended for a client with a postoperative wound infection. While a balanced diet is important for overall health, yogurt or buttermilk is a better choice due to their probiotic content, which may promote gut health and support the immune system.
Choice B rationale:
Fresh fruits are generally a healthy dietary choice, but they are not particularly relevant to the management of a postoperative wound infection. The emphasis for this client should be on foods that support wound healing and immune function, such as yogurt or buttermilk.
Choice D rationale:
Green leafy vegetables are rich in vitamins and minerals, but they are not a primary focus for a client with a postoperative wound infection. Again, the emphasis should be on foods that support the immune system and overall recovery, such as yogurt or buttermilk.
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