The nurse monitors the serum electrolyte levels of a client who is taking digoxin (Lanoxin). Which of the following electrolyte imbalances is a common cause of digoxin toxicity?
- A. Hyponatremia.
- B. Hypomagnesemia.
- C. Hypocalcemia.
- D. Hypokalemia.
Correct Answer: D
Rationale: Hypokalemia enhances digoxin's effect on the heart, increasing toxicity risk by altering cardiac membrane potential.
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A client is admitted with numbness and tingling of the feet and toes after having an upper respiratory infection and flu for the past 5 days. Within 1 hour of admission, the client states that his legs are numb all the way up to his hips. The nurse should do which of the following next? Select all that apply.
- A. Call his family to come in to visit with him.
- B. Notify his health care provider of the change.
- C. Place respiratory resuscitation equipment in the client's room.
- D. Check for advancing levels of paresthesia.
- E. Perform ankle pumps to increase circulation and relieve numbness.
Correct Answer: B,C,D
Rationale: Rapidly progressing numbness suggests a neurological condition like Guillain-Barré syndrome, requiring immediate provider notification (B), monitoring for respiratory involvement with resuscitation equipment (C), and ongoing assessment of paresthesia (D). Family visits and ankle pumps are not priorities.
A client is receiving a blood transfusion when he begins to complain of difficulty breathing. The nurse notes an elevated blood pressure and a cough. Based on these signs, the nurse should prepare to manage which of the following complications?
- A. Anaphylactic reaction.
- B. Circulatory overload.
- C. Sepsis.
- D. Acute hemolytic reaction.
Correct Answer: B
Rationale: Difficulty breathing, elevated blood pressure, and cough suggest circulatory overload, a transfusion complication due to fluid volume excess.
A client with a history of cystitis is admitted to the hospital with a diagnosis of pyelonephritis. The nurse should assess the client for which of the following?
- A. Suprapubic pain.
- B. Dysuria.
- C. Urine retention.
- D. Costovertebral tenderness.
Correct Answer: D
Rationale: Costovertebral tenderness is a hallmark of pyelonephritis, indicating kidney involvement, unlike the other symptoms, which are more typical of cystitis.
The nurse is caring for a client with a history of breast cancer who is receiving tamoxifen (Nolvadex). The nurse should instruct the client to report which of the following side effects immediately?
- A. Hot flashes.
- B. Vaginal bleeding.
- C. Nausea.
- D. Fatigue.
Correct Answer: B
Rationale: Vaginal bleeding may indicate endometrial cancer, a serious side effect of tamoxifen, requiring immediate reporting.
A pregnant woman at 22 weeks' gestation is diagnosed with gonorrhea. The physician orders doxycycline (Vibramycin). The nurse should first:
- A. Inform the client about the effects of the drug.
- B. Make sure the record notes that the baby must receive eyedrops when born.
- C. Have the physician add a single dose of ceftriaxone (Rocephin).
- D. Discuss with the physician the need to change the order.
Correct Answer: D
Rationale: Doxycycline is contraindicated in pregnancy due to risks to the fetus. The nurse should discuss changing the order to a safer alternative, such as ceftriaxone, which is recommended for gonorrhea in pregnancy.
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