The nurse is reviewing the diagnostic studies on a client diagnosed with primary brain cancer. Which lab result would the nurse report to the Primary Care Practitioner (PCP) immediately?
|
Electrolyte |
Normal Value Range |
|
Serum sodium |
135-145 mEq/L |
|
Serum chloride |
97-107 mEq/L |
|
Serum potassium |
3.5-5:3 mEq/L |
|
Serum magnesium |
1.6-2.2 mg/dL |
|
Total serum calcium |
8.2-10.2 mg/dL |
|
lonized calcium |
4.6-5.3 mg/dL |
|
Serum phosphorus |
2.5-4.5 mg/dL |
|
Serum osmolality |
275-295 mOsm/kg |
|
Urine osmolality |
250-900 mOsm/kg |
Magnesium 2.0 mEq/L
Sodium 126 mEq/L
Potassium 3.5 mEq/L
Calcium 10 mg/L
The Correct Answer is B
A. Magnesium at 2.0 mEq/L is within the normal range (1.6-2.2 mg/dL) and does not require immediate intervention.
B. A serum sodium level of 126 mEq/L indicates hyponatremia, which can lead to neurological complications, particularly in patients with brain cancer. Immediate reporting is necessary to manage potential risks such as seizures or altered mental status.
C. A potassium level of 3.5 mEq/L is on the lower limit of normal (3.5-5.3 mEq/L) but is still considered acceptable and does not require urgent action.
D. Calcium at 10 mg/L is an incorrect unit for this context, as total serum calcium is typically measured in mg/dL, and 10 mg/dL falls within the normal range (8.2-10.2 mg/dL).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Reading glasses do not offer sufficient protection against the light sensitivity that results from photodynamic therapy. Special protective eyewear is needed to protect the eyes from exposure to bright light during recovery.
B. Clients are usually instructed to fast before treatments that involve anesthesia or sedation, such as photodynamic therapy. Eating a full breakfast is not typically recommended before this type of treatment.
C. After photodynamic therapy, clients become extremely sensitive to light, including sunlight. Exposure to sunlight or strong indoor lights can cause skin damage, so clients are advised to avoid sun exposure for at least 6 weeks.
D. Skin markings made for treatment guidance should be preserved between treatments, but this is less critical in photodynamic therapy compared to radiation therapy, where precise location is essential for targeting tumors.
Correct Answer is C
Explanation
A. Using sunscreen while playing sports is an important measure to protect the skin from harmful UV radiation, which contributes to skin cancer; therefore, this statement indicates proper understanding.
B. Monthly self-examinations for suspicious lesions are recommended as part of early detection strategies for skin cancer, demonstrating a proactive approach to skin health.
C. Decreasing the use of a tanning bed to twice a month still poses a significant risk for skin damage and cancer, as tanning beds expose the skin to high levels of UV radiation. This statement indicates a lack of understanding of the dangers associated with artificial tanning.
D. Wearing a hat and sunglasses while in the sun is an effective strategy for minimizing sun exposure to sensitive areas, protecting the skin and eyes from UV rays, indicating proper sun safety practices.
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