A nurse is caring for a client who has a prescription for levothyroxine.
Which of the following laboratory tests should the nurse monitor?
Serum potassium
Triiodothyronine
Blood urea nitrogen
Prothrombin time
The Correct Answer is B
Explanation B.Triiodothyronine
Levothyroxine is a synthetic form of the thyroid hormone thyroxine (T4). It is converted to triiodothyronine (T3), the active form of the thyroid hormone, in the body. Monitoring the levels of triiodothyronine (T3) can help assess the effectiveness of levothyroxine therapy and ensure that the client's thyroid hormone levels are within the desired therapeutic range.
Serum potassium levels in (option A) should not be monitored because they are not directly affected by levothyroxine. However, imbalances in electrolytes can occur in some individuals with thyroid disorders. Electrolyte levels may be monitored, but it is not the primary focus of monitoring for levothyroxine therapy.
Blood urea nitrogen (BUN) in (option C) should not be monitored because it is a test used to assess kidney function and is not directly related to monitoring levothyroxine therapy.
Prothrombin time (PT) in (option D) should not be monitored because it is a test used to evaluate the clotting function of the blood and is not specifically related to monitoring levothyroxine therapy.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
This statement reflects an important recommendation for car seat safety. It is recommended to keep infants and toddlers rear-facing in their car seats until they reach the age of 2 or until they outgrow the height and weight limits specified by the car seat manufacturer. Rear-facing car seats provide better protection for the child's head, neck, and spine in the event of a crash. "I should position the car seat's retainer clip at the level of my baby's belly button." The correct position for the retainer clip is at armpit level. It should be positioned across the chest, resting on the bony part of the child's shoulders. Placing the retainer clip at the level of the belly button can be unsafe and may not provide proper protection.
"I should enable the airbag when my baby is in the front seat of the car." It is not recommended to place a rear-facing car seat in the front seat of a vehicle with an active airbag. The force of the airbag deployment can cause serious injuries to the child. The safest place for a rear-facing car seat is in the back seat of the vehicle.
"I should place my baby in the car seat at a 90-degree angle." The angle at which the car seat is installed depends on the specific instructions provided by the car seat manufacturer. It is important to follow the manufacturer's guidelines for proper installation. Some car seats have built-in angle indicators or adjustable recline positions to help achieve the correct angle for optimal safety.
Correct Answer is A
Explanation
Explanation
A. Placement of a central venous catheter
Informed consent is a legal and ethical requirement that ensures clients have the necessary information to make autonomous decisions about their healthcare. The healthcare provider must obtain informed consent before performing any procedure that carries potential risks or benefits. Here's why the other options do not typically require informed consent:
Administration of an iron injection using Z-track technique in (option B) is not correct because, while informed consent may be required for administering certain medications or injections, the specific technique used, such as the Z-track technique, typically does not require separate informed consent. The Z-track technique is a method used to prevent leakage of the medication into subcutaneous tissues during injection.
Insertion of a nasogastric tube in (option C) is not correct because Insertion of a nasogastric tube is a common procedure performed to access the stomach or administer medications or nutrients. Informed consent is generally not required for nasogastric tube insertion as it is considered a routine procedure and is often included as part of the overall plan of care.
Irrigation of a wound with antibiotic solution in (option D) is not correct because wound irrigation is a standard procedure in wound care, and the use of an antibiotic solution may be part of the healthcare provider's prescribed treatment plan. Informed consent is typically not required for wound irrigation unless there are specific circumstances or risks associated with the procedure.
In summary, the nurse should identify that informed consent is required for A: Placement of a central venous catheter. This procedure involves the insertion of a catheter into a major blood vessel and carries potential risks and complications that require informed consent to ensure the client's understanding and agreement before proceeding
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