A nurse is preparing to administer a vaccine into the deltoid muscle of a preschooler. Which of the following actions should the nurse take?
Use a 20 gauge needle
Insert the needle just below the acromion process
Insert the needle at a 15 degree angle
Use a 1.8 mm (0.5 in) needle
The Correct Answer is D
Choice A reason: Using a 20 gauge needle is not the best action, as it is too large for a preschooler's deltoid muscle. A 20 gauge needle has a diameter of 0.9 mm, which may cause more pain and tissue damage. A smaller gauge needle, such as a 23 or 25 gauge, is recommended for intramuscular injections in children.
Choice B reason: Inserting the needle just below the acromion process is not the best action, as it may not reach the deltoid muscle. The acromion process is the bony prominence at the top of the shoulder. The deltoid muscle is located on the lateral aspect of the upper arm, about two finger widths below the acromion process. The nurse should palpate the acromion process and measure the distance to the injection site.
Choice C reason: Inserting the needle at a 15 degree angle is not the best action, as it may not penetrate the muscle tissue. A 15 degree angle is used for intradermal injections, which are given into the dermis, the layer of skin below the epidermis. Intramuscular injections are given into the muscle tissue, which requires a 90 degree angle. The nurse should hold the syringe perpendicular to the skin and insert the needle quickly and firmly.
Choice D reason: Using a 1.8 mm (0.5 in) needle is the best action, as it is the appropriate length for a preschooler's deltoid muscle. The length of the needle should be based on the child's age, weight, and muscle mass. A 1.8 mm (0.5 in) needle is suitable for children who weigh less than 12 kg (26 lb). A longer needle, such as a 2.5 mm (1 in) needle, may be used for children who weigh more than 12 kg (26 lb).
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Glyburide is an oral medication that lowers blood sugar by stimulating the pancreas to produce more insulin. It is not used for type 1 diabetes mellitus, as the pancreas cannot produce enough insulin in this condition. Glyburide is used for type 2 diabetes mellitus, which is caused by insulin resistance.
Choice B reason: Obtaining an influenza vaccine annually is recommended for people who have type 1 diabetes mellitus, as they are more prone to complications from the flu, such as pneumonia, ketoacidosis, and hospitalization. The vaccine can help prevent or reduce the severity of the flu and its complications.
Choice C reason: Injecting insulin in the deltoid muscle is not the best practice for administering insulin, as the absorption rate and onset of action may vary depending on the muscle mass and blood flow. The preferred sites for insulin injection are the abdomen, the upper arms, the thighs, and the buttocks, as they have more subcutaneous fat and less muscle tissue. The injection site should also be rotated to prevent lipodystrophy.
Choice D reason: Administering glucagon for hyperglycemia is not appropriate, as glucagon is a hormone that raises blood sugar by stimulating the liver to release glucose. It is used for hypoglycemia, or low blood sugar, which is a common and serious complication of type 1 diabetes mellitus. Hyperglycemia, or high blood sugar, is treated with insulin, fluids, and electrolytes.
Correct Answer is A
Explanation
Choice A reason: Broad-spectrum antibiotics are indicated for septic shock caused by bacterial infection, as they can target a wide range of pathogens and prevent further sepsis. Fluid boluses are also essential to restore the intravascular volume and improve tissue perfusion and oxygenation.
Choice B reason: Antipyretics and oxygen therapy are not sufficient to treat septic shock, as they do not address the underlying infection or the hypovolemia. Antipyretics may lower the temperature, but they do not eliminate the bacteria. Oxygen therapy may improve the pulse oximeter reading, but it does not correct the hypoperfusion.
Choice C reason: Vasopressors and blood transfusions are not the first-line treatments for septic shock, as they may have adverse effects on the cardiovascular system and the coagulation cascade. Vasopressors may increase the blood pressure, but they may also cause vasoconstriction and reduce the blood flow to vital organs. Blood transfusions may increase the hemoglobin level, but they may also increase the risk of fluid overload, hemolysis, and transfusion reactions.
Choice D reason: Corticosteroids and antihistamines are not indicated for septic shock, as they do not have any proven benefits and may have harmful effects on the immune system and the inflammatory response. Corticosteroids may suppress the adrenal function and increase the risk of infection. Antihistamines may cause sedation and dryness of the mucous membranes.
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