Nursing Elites

1. Which neurotransmitter is most closely associated with mood regulation and is targeted by antidepressants?

• A. Serotonin
• B. Dopamine
• C. GABA
• D. Acetylcholine

Correct answer: A

Rationale: The correct answer is A: Serotonin. Serotonin plays a vital role in mood regulation, and its imbalance is often associated with depression. Many antidepressants function by boosting serotonin levels in the brain. Dopamine (Choice B) is more linked to reward and pleasure pathways in the brain, not primarily targeted for mood regulation. GABA (Choice C) is an inhibitory neurotransmitter that helps reduce neuronal excitability, not primarily associated with mood regulation. Acetylcholine (Choice D) is involved in muscle movement and cognitive functions, not the primary target of antidepressants for mood regulation.

2. What is the most common cause of hyperthyroidism?

• A. Graves' disease
• B. Hashimoto's thyroiditis
• C. Thyroid nodules
• D. Pituitary adenoma

Correct answer: A

Rationale: Corrected Rationale: Graves' disease is the most common cause of hyperthyroidism. It is characterized by an overactive thyroid gland due to autoantibodies stimulating the thyroid. Hashimoto's thyroiditis is actually a cause of hypothyroidism, not hyperthyroidism. Thyroid nodules and pituitary adenoma are not common causes of hyperthyroidism.

3. Which is the most important safety measure when administering a medication through a patient’s central venous catheter (CVC)?

• A. Using a sterile technique
• B. Ensuring correct placement of the CVC
• C. Flushing the CVC with saline after administration
• D. Monitoring for signs of infection

Correct answer: B

Rationale: The most important safety measure when administering a medication through a patient’s central venous catheter (CVC) is ensuring the correct placement of the CVC. This is crucial to prevent complications such as extravasation, infection, or improper drug delivery. While using a sterile technique, flushing the CVC with saline after administration, and monitoring for signs of infection are all important aspects of CVC care, ensuring the correct placement of the catheter takes precedence as it directly impacts patient safety during medication administration.

4. A client presents to the office with complaints of swelling in the legs, chills, and shortness of breath. During auscultation of the chest, a heart murmur is heard. The client's blood culture reveals a microorganism in the blood. When a microorganism is found in the blood, this condition is called

• A. Bacteremia
• B. Sepsis
• C. Septicemia
• D. Parasitic infection

Correct answer: A

Rationale: When a microorganism is found in the blood, this condition is called bacteremia, which refers to the presence of bacteria in the bloodstream, as indicated by a positive blood culture. If not appropriately treated, bacteremia can progress to septicemia, also known as sepsis. Sepsis is a severe and life-threatening response to an infection, characterized by systemic inflammation and organ dysfunction. Parasitic infections involve pathogens other than bacteria and are not directly related to the scenario described.

5. A registered nurse is preparing to hang the first bag of total parenteral nutrition (TPN) solution. The client has a central line, and this is the first bag he will receive. Which of the following is the most essential piece of equipment to obtain prior to hanging the bag?

• A. Blood glucose meter
• B. Noninvasive blood pressure monitor
• C. Electronic infusion pump
• D. Urine test strips

Correct answer: C

Rationale: An electronic infusion pump is essential for administering TPN to ensure accurate delivery and avoid complications such as fluid overload or improper nutrient delivery. The pump helps regulate the flow rate precisely, which is crucial when infusing TPN. Monitoring the client's blood glucose is important but not immediately necessary before hanging the TPN bag. A noninvasive blood pressure monitor is not directly related to administering TPN and is not the most essential equipment needed for this procedure. Urine test strips are not required for administering TPN via a central line and are not essential equipment for this specific task.

Similar Questions