Nursing Elites

1. A patient had a pneumonectomy to the right lung performed 48 hours ago. Which of the following conditions most likely exists?

• A. Decreased breath sound volume
• B. Elevated tidal volume
• C. Elevated respiratory capacity
• D. Wheezing

Correct answer: A

Rationale: After a pneumonectomy, where a lung is surgically removed, there will be a decrease in breath sound volume on the affected side due to reduced airflow. This reduction in breath sound volume is expected as there is less lung tissue to produce sound. Choices B, C, and D are incorrect. Elevated tidal volume and respiratory capacity are not expected after a pneumonectomy, and wheezing is more commonly associated with conditions like asthma or bronchitis, not a recent pneumonectomy.

2. What is one characteristic of human immunodeficiency virus (HIV)?

• A. The presence of circulating antibodies that neutralize HIV is evidence of exposure to HIV.
• B. HIV replication occurs intracellularly.
• C. HIV integrates its genetic material into the host cell's DNA.
• D. DNA replication is irrelevant to HIV.

Correct answer: C

Rationale: The correct answer is C. HIV integrates its genetic material into the host cell's DNA. The virus uses the enzyme reverse transcriptase to make a DNA copy of its RNA, which is then inserted into the genetic material of the infected cell. Choice A is incorrect because the presence of antibodies does not indicate immunity to HIV but rather exposure to the virus. Choice B is incorrect as HIV replication occurs intracellularly, inside the host cell. Choice D is irrelevant to the characteristics of HIV.

3. The nurse is caring for a 44-year-old client diagnosed with hypoparathyroidism. Which electrolyte imbalance is closely associated with hypoparathyroidism?

• A. Hypocalcemia.
• B. Hyponatremia.
• C. Hyperkalemia.
• D. Hypophosphatemia.

Correct answer: A.

Rationale: The correct answer is Hypocalcemia. In hypoparathyroidism, where the parathyroid glands are not producing sufficient parathyroid hormone, calcium levels become inadequate. This leads to hypocalcemia, characterized by symptoms such as muscle spasms, anxiety, seizures, hypotension, and congestive heart failure. Hyponatremia and hyperkalemia are not typically associated with hypoparathyroidism. While hyperphosphatemia can be seen in hypoparathyroidism due to decreasing calcium levels, the question specifically asks about the primary electrolyte imbalance closely related to hypoparathyroidism, which is hypocalcemia.

4. The client has been taking divalproex (Depakote) for the management of bipolar disorder. The nurse should give priority to monitoring which laboratory test?

• A. Alanine aminotransferase (ALT)
• B. Serum glucose
• C. Serum creatinine
• D. Serum electrolytes

Correct answer: A

Rationale: The correct answer is Alanine aminotransferase (ALT). Monitoring ALT levels is crucial when a patient is taking divalproex (Depakote) due to the risk of drug-induced hepatitis. Elevated ALT levels indicate liver damage or disorders, which can be a side effect of Depakote. Serum glucose (choice B) is not the priority for monitoring in this case, as the medication does not directly affect glucose levels. Serum creatinine (choice C) is not the most relevant test to monitor for Depakote use; it primarily assesses kidney function. Serum electrolytes (choice D) are important but do not take precedence over monitoring ALT levels when a patient is on Depakote.

5. Levothyroxine (Synthroid) is the drug of choice for thyroid replacement therapy in clients with hypothyroidism because:

• A. it is chemically stable, nonallergenic, and can be administered orally once a day.
• B. it is available in a wide range of concentrations to meet individual client requirements.
• C. it is a prodrug of T3.
• D. it has a long half-life.

Correct answer: A

Rationale: Levothyroxine (Synthroid) is the preferred medication for hypothyroidism due to its chemical stability, nonallergenic properties, and convenient once-daily oral administration. It is safe and effective with minimal side effects when appropriately dosed. Choice B is incorrect because while Levothyroxine is available in various concentrations, it is not the reason it is the drug of choice; the primary reason is its stability and nonallergenic nature. Choice C is wrong as Levothyroxine (T4) is not a prodrug of T3; it is converted to T3 in the body. Option D is inaccurate because Levothyroxine has a long half-life (around 7 days), enabling once-daily dosing, as opposed to a short half-life.

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