Nokea
The cells of a normal individual can replicate in a specified rate. If the rate of replication becomes uncontrollable, which of the following is lacking from the patient?
- A. Apoptosis
- B. Contact inhibition
- C. Stable cells
- D. Labile cells
Correct Answer: B
Rationale: Contact inhibition is a regulatory mechanism that prevents cells from proliferating once they reach a certain density. Normally, when cells grow and touch each other (such as in a monolayer), they stop dividing, maintaining tissue integrity and structure. When contact inhibition is lacking, as in many cancerous cells, cells continue to grow and divide uncontrollably, leading to tumor formation. This loss of regulation is a hallmark of cancerous growth.
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An oncology patient has just returned from the post-anesthesia care unit after an open hemicolectomy. This patient¢â‚¬â„¢s plan of nursing care should prioritize which of the following?
- A. Assess the patient hourly for signs of compartment syndrome.
- B. Assess the patient¢â‚¬â„¢s fine motor skills once per shift.
- C. Assess the patient¢â‚¬â„¢s wound for dehiscence every 4 hours.
- D. Maintain the patient¢â‚¬â„¢s head of bed at 45 degrees or more at all times.
Correct Answer: C
Rationale: After an open hemicolectomy (surgical removal of part of the colon), monitoring the surgical wound for signs of dehiscence (wound reopening) is a critical nursing priority. Dehiscence is a serious postoperative complication that can occur if the surgical site does not heal properly. Regular wound assessments every 4 hours allow the nurse to identify early signs of complications, such as redness, swelling, increased drainage, or separation of the wound edges. Early detection is key to preventing further complications, such as infection or evisceration (protrusion of abdominal organs through the wound).
A nurse is caring for a client admitted for Non-Hodgkin's lymphoma and chemotherapy. The client reports nausea, flank pain, and muscle cramps. What action by the nurse is most important?
- A. Request an order for serum electrolytes and uric acid.
- B. Increase the client's IV infusion rate.
- C. Instruct assistive personnel to strain all urine.
- D. Administer an IV antiemetic.
Correct Answer: A
Rationale: The client's symptoms of nausea, flank pain, and muscle cramps are suggestive of tumor lysis syndrome (TLS), a potentially life-threatening complication of chemotherapy in which cancer cells break down rapidly, releasing large amounts of intracellular components into the bloodstream. This leads to imbalances in electrolytes (elevated potassium, phosphate, and uric acid levels, with low calcium levels), which can cause severe metabolic disturbances, including kidney damage, arrhythmias, and muscle cramps. Checking serum electrolytes and uric acid levels is crucial for diagnosing and managing TLS early, preventing further complications.
A nurse is planning the care of a patient who has been diagnosed with essential thrombocythemia (ET). What nursing diagnosis should the nurse prioritize when choosing interventions?
- A. Risk for Ineffective Tissue Perfusion
- B. Risk for Imbalanced Fluid Volume
- C. Risk for Ineffective Breathing Pattern
- D. Risk for Ineffective Thermoregulation
Correct Answer: A
Rationale: Essential thrombocythemia (ET) is a myeloproliferative disorder characterized by an abnormally high platelet count, which increases the risk of hypercoagulation and thrombosis (blood clot formation). These clots can impair blood flow to tissues, leading to ineffective tissue perfusion. Thrombotic events, such as strokes, deep vein thrombosis, or myocardial infarctions, are common complications of ET, making Risk for Ineffective Tissue Perfusion the most critical nursing diagnosis to prioritize. The goal of nursing interventions will be to prevent clot formation and ensure adequate blood flow to tissues.
A patient with a myelodysplastic syndrome is being treated on the medical unit. What assessment finding should prompt the nurse to contact the patients primary care provider?
- A. The patient is experiencing a frontal lobe headache.
- B. The patient has an episode of urinary incontinence.
- C. The patient has an oral temperature of 37.5C (99.5F).
- D. The patients SpO2 is 91% on room air.
Correct Answer: C
Rationale: Patients with myelodysplastic syndrome (MDS) have a dysfunctional bone marrow that leads to ineffective blood cell production, including white blood cells, which are crucial for fighting infections. As a result, they are at high risk for infections. Even a slight elevation in temperature, such as 37.5°C (99.5°F), could be an early sign of infection in an immunocompromised patient. Early detection and treatment of infections are critical in MDS patients, as infections can quickly become severe or life-threatening due to their compromised immune system.
A client is having a catheter placed to deliver chemotherapy beads into a liver tumor via the femoral artery. What action by the nurse is most important?
- A. Assessing the client's abdomen beforehand.
- B. Ensuring that informed consent is on the chart.
- C. Marking the client's bilateral pedal pulses.
- D. Reviewing client teaching done previously.
Correct Answer: B
Rationale: Before any invasive procedure, such as placing a catheter to deliver chemotherapy beads into a liver tumor, it is essential to ensure that informed consent has been obtained from the client. This is a legal and ethical requirement that ensures the client understands the procedure, its risks, benefits, and alternatives. Ensuring that the signed consent is on the chart is the most important action the nurse can take before the procedure, as the procedure cannot legally proceed without it.