A nurse is providing teaching for a client who has diabetes mellitus about the self-administration of insulin. The client has prescriptions for regular and NPH insulins. Which of the following statements by the client indicates an understanding of the teaching?
"I will draw the regular insulin into the syringe first."
"I will store prefilled syringes in the refrigerator with the needle pointed upward."
"I will gently roll the NPH vial between my hands before drawing up the insulin."
"I will insert the needle at a 90-degree angle."
The Correct Answer is A
Choice A reason: Drawing the regular insulin into the syringe first is correct. When mixing two types of insulin, the clear (regular) insulin should be drawn up before the cloudy (NPH) insulin to prevent contamination.
Choice B reason: Storing prefilled syringes with the needle pointed upward can cause air bubbles to move into the insulin, which can alter the dose when injected. The needle should be pointed downward.
Choice C reason: Shaking the NPH vial vigorously is not recommended as it can create air bubbles and affect the insulin dose. Instead, the vial should be gently rolled between the hands to mix the insulin.
Choice D reason: Inserting the needle at a 15-degree angle is incorrect for subcutaneous injections. A 90-degree angle is typically used unless the patient is very thin, in which case a 45-degree angle may be used.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: The fluctuation of fluid in the water-seal chamber does not necessarily mean that the lung is fully re-expanded. The water-seal chamber's fluid level fluctuates with the client's breathing because it reflects the changes in intrathoracic pressure.
Choice B reason: The statement "Your breathing pattern causes this" is correct. The fluctuation, also known as tidaling, in the water-seal chamber is normal and occurs in response to the client's breathing. When the client inhales, negative pressure in the chest cavity causes the fluid level to rise, and when the client exhales, the pressure becomes positive, causing the fluid level to fall.
Choice C reason: Suction pressure that is too high can cause continuous bubbling in the suction control chamber but does not directly cause the fluid in the water-seal chamber to rise and fall. The suction control chamber's bubbling should be steady and gentle when the suction is set correctly.
Choice D reason: Continuous bubbling in the water-seal chamber may indicate an air leak, which is a problem that needs to be addressed. However, normal fluctuation with breathing is not indicative of an air leak.
Correct Answer is B
Explanation
Choice A reason: Aspirating the catheter to check for a brisk blood return is not typically recommended as a routine action when replacing the dressing of a PICC line used for TPN. This action is performed to verify patency and placement of the catheter, but it is not directly related to the dressing change procedure.
Choice B reason: Using sterile technique for the procedure is essential when replacing the dressing of a PICC line. Maintaining sterility is crucial to prevent infection, as the PICC line provides direct access to the central venous system. The nurse should use sterile gloves and follow aseptic protocols to minimize the risk of introducing pathogens at the catheter insertion site.
Choice C reason: Cleansing the insertion site with hydrogen peroxide is not recommended for PICC line care. Hydrogen peroxide can be damaging to the tissue and may delay healing. Instead, a chlorhexidine-based antiseptic is typically used to clean the skin around the insertion site during dressing changes to reduce microbial flora and prevent infection.
Choice D reason: Flushing the TPN port with 20 mL of 0.9% sodium chloride is a practice used to maintain catheter patency, but it is not part of the dressing change procedure. Flushing is usually done before and after administering medication or nutrition, not specifically during a dressing change.
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