The nurse is reviewing lab results for a client receiving chemotherapy for the treatment of cancer. The nurse notes the carcinoembryonic antigen (CEA) was previously 50 ng/ mL and is now 10 ng/mL (normal range 0-2.5 ng/mL) The nurse is aware this finding indicates the:
treatment plan will need to be changed to achieve the desired effect
cancer treatment is having, the desired effect on killing cancer cells
client is at greater risk for tumor lysis syndrome
cancer has increased size and metastatic sites
The Correct Answer is B
A) Treatment plan will need to be changed to achieve the desired effect:
The decrease in the carcinoembryonic antigen (CEA) levels from 50 ng/mL to 10 ng/mL suggests that the cancer is responding to the current treatment, not that the treatment plan needs to be changed. A drop in CEA levels typically indicates a positive response to treatment, such as chemotherapy, in reducing the number or size of cancer cells.
B) Cancer treatment is having the desired effect on killing cancer cells:
Carcinoembryonic antigen (CEA) is a tumor marker that is often elevated in individuals with certain cancers, particularly colorectal cancer. A decrease in CEA levels, as noted in this case (from 50 ng/mL to 10 ng/mL), usually signifies that the treatment is successfully targeting the cancer and reducing the tumor burden. This drop suggests that the chemotherapy is effectively killing cancer cells and reducing the size or activity of the tumor.
C) Client is at greater risk for tumor lysis syndrome:
Tumor lysis syndrome typically occurs when large numbers of cancer cells die rapidly, releasing their intracellular contents into the bloodstream, which can lead to metabolic disturbances like hyperkalemia, hyperphosphatemia, and renal failure. It is more common in aggressive hematologic cancers, such as leukemia or lymphoma, and typically presents with a rapid rise in tumor marker levels, not a decrease.
D) Cancer has increased size and metastatic sites:
An increase in tumor size or the development of metastatic sites would typically result in an increase in CEA levels, not a decrease. Since CEA levels have dropped, it is more likely that the cancer is shrinking or responding to the current treatment. This finding is more indicative of a positive response rather than disease progression.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["12"]
Explanation
Given:
Ordered dose of Heparin: 20 units/kg
Patient weight: 132 lbs
Concentration of Heparin: 25,000 units/250 mL (100 units/mL)
Step 1: Convert patient weight from pounds to kilograms:
1 pound (lb) = 0.453592 kilograms (kg)
Patient weight in kg = 132 lbs x 0.453592 kg/lb = 59.87424 kg
Step 2: Calculate the total dose of Heparin:
Total dose (units) = Ordered dose (units/kg) x Patient weight (kg)
Total dose (units) = 20 units/kg x 59.87424 kg
Total dose (units) = 1197.4848 units
Step 3: Calculate the volume to be administered:
Volume (mL) = Total dose (units) / Concentration (units/mL)
Volume (mL) = 1197.4848 units / 100 units/mL
Volume (mL) = 11.974848 mL
Step 4: Round to the nearest whole number:
Volume (mL) ≈ 12 mL
Correct Answer is A
Explanation
A) Respiratory compromise
A spinal cord injury (SCI) at the level of C-3 (cervical spine) results in the loss of function of the diaphragm, which is innervated by the phrenic nerve originating from C-3 to C-5. As a result, the patient is at high risk for respiratory compromise and may require mechanical ventilation. Respiratory failure is a leading cause of death and complications in individuals with high cervical spinal cord injuries, particularly when the injury is at or above C-4.
B) Hypertension
Although spinal cord injuries can cause autonomic dysreflexia (a condition where the body’s autonomic nervous system overreacts to stimuli, leading to dangerously high blood pressure), this condition is more common in individuals with injuries above T6. At C-3, respiratory issues are the primary concern, and hypertension is not the leading cause of complications.
C) Septic shock
Septic shock can occur after any significant injury, especially if the individual develops infections (e.g., from urinary retention, pressure ulcers, or pneumonia). However, septic shock is not the main cause of complications or death related to a C-3 spinal cord injury.
D) Bradycardia
Bradycardia (a slow heart rate) can indeed be a concern in patients with SCI, especially those with injuries at or above the T1 level. However, at the level of C-3, the main cause of complications is respiratory failure, not bradycardia. While bradycardia can occur due to disruption of sympathetic nervous system control, respiratory compromise is the most critical immediate concern.
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