Nokea
Which laboratory finding would indicate a 62-year-old male client is at risk for ventricular dysrhythmia?
- A. magnesium 0.8 mmEq/L
- B. potassium 4.2 mmol/L
- C. creatinine 1.3 mg/dL
- D. total calcium 2.8 mmol/L
Correct Answer: A
Rationale: Low magnesium (0.8 mEq/L; normal 1.5-2.5 mEq/L) increases the risk of ventricular dysrhythmias. Other values are within normal ranges.
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Which finding is associated with Tay Sachs disease?
- A. Pallor of the conjunctiva
- B. Cherry-red spots on the macula
- C. Blue-tinged sclera
- D. White flecks in the iris
Correct Answer: B
Rationale: Cherry-red spots on the macula are a classic finding in Tay-Sachs disease due to lipid accumulation in retinal ganglion cells.
The nurse is performing discharge teaching to the parents of a 7-year-old who has been diagnosed with asthma. Which sports activity would be most appropriate for this client?
- A. Baseball
- B. Swimming
- C. Football
- D. Track
Correct Answer: B
Rationale: Swimming is ideal for asthma clients as it promotes controlled breathing in a warm, humid environment, reducing the risk of exercise-induced bronchospasm.
A home health nurse is planning for her daily visits. Which client should the home health nurse visit first?
- A. A client with AIDS being treated with Foscarnet
- B. A client with a fractured femur in a long leg cast
- C. A client with laryngeal cancer with a laryngectomy
- D. A client with diabetic ulcers to the left foot
Correct Answer: A
Rationale: Foscarnet requires monitoring for toxicity, making this client a priority.
The nurse who is caring for a client with cancer notes a WBC of 500 on the laboratory results. Which intervention would be most appropriate to include in the client's plan of care?
- A. Assess temperature every 4 hours because of risk for hypothermia
- B. Instruct the client to avoid large crowds and people who are sick
- C. Instruct in the use of a soft toothbrush
- D. Assess for hematuria
Correct Answer: B
Rationale: A WBC of 500 indicates severe neutropenia, increasing infection risk. Avoiding crowds and sick people is critical to prevent infections. The other interventions are less specific.
The nurse on oncology is caring for a client with a white blood count of 600. During evening visitation, a visitor brings a potted plant. What action should the nurse take?
- A. Allow the client to keep the plant
- B. Place the plant by the window
- C. Water the plant for the client
- D. Tell the family members to take the plant home
Correct Answer: D
Rationale: A low WBC (neutropenia) increases infection risk, so the plant, which may harbor bacteria or fungi, should be removed.