Nursing Elites

1. What is the primary cause of diabetic ketoacidosis (DKA)?

• A. Insulin deficiency
• B. Overhydration
• C. Excess carbohydrate intake
• D. Excess insulin

Correct answer: A

Rationale: The correct answer is A: Insulin deficiency. Diabetic ketoacidosis occurs due to a severe lack of insulin, causing the body to break down fat for energy, leading to the production of ketones and acidification of the blood. Option B, Overhydration, is incorrect as DKA is characterized by dehydration rather than overhydration. Option C, Excess carbohydrate intake, is incorrect because while high blood sugar levels can contribute to DKA, the primary cause is insulin deficiency. Option D, Excess insulin, is also incorrect as DKA is not caused by an excess of insulin but rather by a lack of it.

2. A client who had a thyroidectomy 24 hours ago reports tingling around the mouth and in the fingertips. What should the nurse do first?

• A. Check the client’s calcium levels.
• B. Administer a dose of calcium gluconate.
• C. Assess the client's incision site for bleeding.
• D. Notify the healthcare provider.

Correct answer: A

Rationale: Tingling around the mouth and in the fingertips can indicate hypocalcemia, a potential complication after thyroidectomy due to accidental damage to the parathyroid glands. Checking calcium levels is crucial as it helps in diagnosing hypocalcemia accurately. Administering calcium without knowing the actual calcium levels can be dangerous. Assessing the incision site for bleeding is important but not the priority in this situation. Notifying the healthcare provider can be done after assessing and managing the immediate concern of hypocalcemia.

3. The PN notes that an older female client has developed a nonproductive cough and seems more confused than the previous day. Vital signs are temperature 99.8°F, pulse 94, respirations 22, and B/P 108/54. Which intervention is most important for the PN to implement?

• A. Report the findings to the charge nurse
• B. Monitor the client's temperature hourly
• C. Offer the client fluids frequently
• D. Provide care to moisten oral mucosa

Correct answer: A

Rationale: The change in the client’s condition, especially confusion and a new cough, may indicate the onset of an infection such as pneumonia, which requires immediate attention. Reporting to the charge nurse ensures prompt evaluation and intervention. Monitoring the client's temperature hourly (Choice B) could be important but not the most critical at this point. Offering the client fluids frequently (Choice C) and providing care to moisten oral mucosa (Choice D) are not the priority interventions when facing potential signs of infection and confusion in the client.

4. In which condition is the 'butterfly rash' most commonly seen?

• A. Systemic lupus erythematosus
• B. Rheumatoid arthritis
• C. Psoriasis
• D. Dermatomyositis

Correct answer: A

Rationale: The correct answer is A: Systemic lupus erythematosus (SLE). The 'butterfly rash' across the cheeks and nose is a classic sign of SLE, an autoimmune disease. This rash is a key dermatological manifestation of SLE, often triggered or worsened by exposure to sunlight. Choices B, C, and D are incorrect because the 'butterfly rash' is not commonly associated with rheumatoid arthritis, psoriasis, or dermatomyositis.

5. Which condition is characterized by a progressive loss of muscle strength due to an autoimmune attack on acetylcholine receptors?

• A. Myasthenia gravis
• B. Multiple sclerosis
• C. Amyotrophic lateral sclerosis
• D. Guillain-Barré syndrome

Correct answer: A

Rationale: The correct answer is A: Myasthenia gravis. Myasthenia gravis is characterized by muscle weakness caused by autoimmune attack on acetylcholine receptors at the neuromuscular junction. This results in impaired communication between nerves and muscles. Choice B, Multiple sclerosis, is a condition where the immune system attacks the protective myelin sheath covering the nerves in the central nervous system, leading to communication issues between the brain and the rest of the body. Choice C, Amyotrophic lateral sclerosis, is a progressive neurodegenerative disease affecting motor neurons in the brain and spinal cord, not involving acetylcholine receptors. Choice D, Guillain-Barré syndrome, is an acute condition where the immune system attacks the peripheral nerves, causing muscle weakness and paralysis, but it does not target acetylcholine receptors.

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