LPN Fundamentals Practice Questions

Correct Answer: B

Rationale: When administering a subcutaneous injection, inserting the needle at a 90-degree angle is appropriate. This angle helps ensure proper delivery of the medication into the subcutaneous tissue. Using a 1-inch needle is common for subcutaneous injections to reach the subcutaneous fat layer adequately. Tuberculin syringes are typically used for intradermal injections, not subcutaneous injections. Aspirating before injecting is not necessary for subcutaneous injections as it is primarily used for intramuscular injections to ensure the needle is not in a blood vessel.

Correct Answer: A

Rationale: The correct answer is A: 'I should avoid foods that contain gluten.' Celiac disease requires the avoidance of gluten-containing foods to manage symptoms and prevent complications. Gluten is found in wheat, barley, and rye. Choices B, C, and D are incorrect as they do not align with the dietary requirements for managing celiac disease. Increasing intake of foods high in gluten or lactose would be detrimental for someone with celiac disease.

Correct Answer: C

Rationale: When following a low-fat diet, it is essential to choose foods that are low in fat. Chicken breast is a lean protein source that is low in fat, making it a suitable option for a low-fat diet. Bacon, whole milk, and cheese are higher in fat content and should be avoided or limited in a low-fat diet. Bacon is high in saturated fat, whole milk contains significant amounts of fat, including saturated fat, and cheese is also high in fat. Therefore, these options are not ideal for a low-fat diet.

Correct Answer: B

Rationale: The correct answer is B. Administering an intramuscular injection at a 90� angle is essential for proper medication delivery into the muscle tissue. Injecting at a 45� angle is incorrect for intramuscular injections and is typically used for subcutaneous injections where the needle is inserted into the fatty tissue layer beneath the skin. Choice A is correct as selecting a 25-gauge needle is appropriate for an intramuscular injection. Choice C is also correct as the ventrogluteal site is a suitable site for intramuscular injections. Choice D is correct as aspirating for blood return is a necessary step to ensure the needle is not in a blood vessel before injecting the medication.

Correct Answer: B

Rationale: Edema at the infusion site is an indication of infiltration, where fluid leaks into the surrounding tissues causing swelling. This can compromise the delivery of medication and fluids, potentially leading to complications. Redness, warmth, and oozing of blood are more suggestive of inflammation or infection rather than infiltration. Infiltration requires prompt recognition and intervention to prevent further issues with the IV therapy.