Nursing Elites

1. Hormonal agents are used to treat some cancers. An example is:

• A. thyroxine to treat thyroid cancer.
• B. ACTH to treat adrenal carcinoma.
• C. estrogen antagonists to treat breast cancer.
• D. glucagon to treat pancreatic carcinoma.

Correct answer: C

Rationale: Estrogen antagonists are commonly used to treat estrogen hormone-dependent cancers such as breast carcinoma. One well-known estrogen antagonist used in breast cancer therapy is Tamoxifen (Nolvadex). This drug, in combination with surgery and other chemotherapeutic drugs, reduces breast cancer recurrence by 30%. Estrogen antagonists can also be administered to prevent breast cancer in women who have a strong family history. Thyroxine is a thyroid hormone used to treat hypothyroidism, not thyroid cancer. ACTH is an anterior pituitary hormone that stimulates the adrenal glands to release glucocorticoids; it does not treat adrenal cancer. Glucagon is a pancreatic alpha cell hormone that stimulates glycogenolysis and gluconeogenesis; it does not treat pancreatic cancer.

2. Which laboratory test would be the least effective in diagnosing a myocardial infarction?

• A. AST
• B. Troponin
• C. CK-MB
• D. Myoglobin

Correct answer: A

Rationale: AST, choice A, would be the least effective in diagnosing a myocardial infarction as it is not specific for this condition. Troponin, CK-MB, and myoglobin (choices B, C, and D) are more specific markers for myocardial infarction. Troponin is considered the gold standard due to its cardiac specificity. CK-MB is also specific to the heart, and its isoenzyme levels elevate post-heart damage. Myoglobin, although elevated in myocardial infarction, is not as specific as troponin and CK-MB and can also increase in conditions like burns and muscle trauma. Therefore, AST is the least effective choice for diagnosing a myocardial infarction.

3. The best definition of communication is:

• A. the sending and receiving of messages.
• B. the effect of sending verbal messages.
• C. an ongoing, interactive form of transmitting transactions.
• D. the use of message variables to send information.

Correct answer: C

Rationale: Communication is defined as an ongoing, interactive form of transmitting transactions. It involves a dynamic process of sending (encoding) and receiving (decoding) messages while being influenced by the experiences and perceptions of both the sender and receiver. This process is interactive and occurs within an environment, shaping individuals' self-concept, identity, and relationships. The correct answer captures the complexity and interactive nature of communication. Choice A, 'the sending and receiving of messages,' is too simplistic and does not encompass the interactive nature of communication. Choice B, 'the effect of sending verbal messages,' focuses solely on verbal communication and overlooks non-verbal forms. Choice D, 'the use of message variables to send information,' emphasizes technical aspects rather than the interactive and transactional nature of communication.

4. Upon arrival at the emergency room, the client presents with severe burns to the left arm, hands, face, and neck. What action should take priority?

• A. Starting an IV
• B. Applying oxygen
• C. Obtaining blood gases
• D. Medicating the client for pain

Correct answer: B

Rationale: In a client with severe burns to the face and neck, airway assessment and supplemental oxygen are crucial. Therefore, applying oxygen is the priority to ensure adequate oxygenation for the client. This intervention takes precedence over other actions to stabilize the client's condition. Starting an IV for fluid resuscitation is the next appropriate step following ensuring oxygenation (Choice A). While pain management is important, it is a secondary priority after ensuring oxygenation and fluid resuscitation, making medicating the client for pain a later intervention (Choice D). Obtaining blood gases (Choice C) is not the immediate priority in this scenario and would typically be ordered by the healthcare provider based on the client's condition and response to initial interventions.

5. The primary organ for drug elimination is the:

• A. skin
• B. lung(s)
• C. kidney(s)
• D. liver

Correct answer: C

Rationale: The correct answer is the kidney(s) because most drugs are excreted in the urine, either as the parent compound or as drug metabolites. The skin is not the primary organ for drug elimination; only a few drugs are excreted in sweat. The lung(s) primarily excrete volatile gases with expiration, not drugs. While the liver metabolizes drugs, it is the kidney(s) that primarily eliminate drugs through urine, especially those with a molecular weight above 300.

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