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).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Discouraging a high level of fluid intake is incorrect, as hydration is essential for preventing sickle cell crises and reducing blood viscosity. The nurse should encourage the child to drink at least 1.5 times the normal fluid requirement.
Choice B reason: Administering meperidine every 4 hr for pain is incorrect, as meperidine is not recommended for sickle cell pain due to the risk of neurotoxicity and seizures. The nurse should use other opioids such as morphine or hydromorphone for pain management.
Choice C reason: Applying cold compresses to painful, swollen joints is incorrect, as cold can cause vasoconstriction and worsen the sickling of red blood cells. The nurse should use warm compresses or heating pads to promote vasodilation and blood flow.
Choice D reason: Observing for indications of hypokalemia is correct, as sickle cell anemia can cause hemolysis and potassium loss. The nurse should monitor the child's serum potassium level and watch for signs of hypokalemia such as muscle weakness, cramps, arrhythmias, and constipation.
Correct Answer is ["B"]
Explanation
Choice A reason: Polyuria, or excessive urination, is not a sign of low blood glucose level, but of high blood glucose level. It is caused by osmotic diuresis, which occurs when the kidneys try to flush out the excess glucose from the blood.
Choice B reason: Tachycardia, or fast heart rate, is a sign of low blood glucose level. It is caused by the activation of the sympathetic nervous system, which releases adrenaline and other hormones to increase the blood glucose level and stimulate the heart.
Choice C reason: Dry, flushed skin is not a sign of low blood glucose level, but of high blood glucose level. It is caused by dehydration, which occurs when the body loses fluid due to polyuria and increased thirst.
Choice D reason: Deep, rapid respirations are not a sign of low blood glucose level, but of diabetic ketoacidosis, a complication of high blood glucose level. It is caused by the accumulation of ketones, which are acidic substances produced when the body breaks down fat for energy due to lack of insulin.
Choice E reason: Hunger is a sign of low blood glucose level. It is caused by the lack of glucose in the cells, which are the main source of energy for the body. The brain signals the body to eat more to raise the blood glucose level.
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