A nurse is preparing to administer heparin 15,000 units every 12 hr subcutaneously to a client who weighs 80 kg. Available is 10,000 units/mL. How many mL should the nurse administer with each dose?

(Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Choice A reason: Asking the client if they are having difficulty breathing is the highest priority question, as it can assess the severity of their allergic reaction to penicillin and the risk of anaphylaxis, which is a life-threatening condition that can cause airway obstruction and respiratory failure.

Choice B reason: Taking the client's heart rate is not a question, but an action that can be done after asking the client about their breathing status. The heart rate can indicate the presence of tachycardia or arrhythmia, which are signs of cardiovascular compromise due to an allergic reaction.

Choice C reason: Telling the client that they need to receive diphenhydramine is not a question, but an action that can be done after asking the client about their breathing status. Diphenhydramine is an antihistamine drug that can reduce the symptoms of an allergic reaction, such as itching, swelling, or wheezing.

Choice D reason: Asking the client if they have any allergies to medications is not a high priority question, as it can be done before administering penicillin or after stabilizing the client's condition. Knowing the client's allergy history can help prevent future adverse reactions and guide appropriate treatment choices.Question 42

Choice A: This is incorrect because applying lotion between the toes can create a moist environment that promotes fungal growth and infection. The client should apply lotion to the feet but avoid the areas between the toes.

Choice B: This is incorrect because wearing open-toe shoes can expose the feet to injury and infection. The client should wear well-fitting, closed-toe shoes that protect the feet and prevent pressure ulcers.

Choice C: This is correct because wearing cotton socks can help keep the feet dry and prevent fungal infections. Cotton socks also provide cushioning and reduce friction.

Choice D: This is incorrect because rounding the corners of the toenails can cause ingrown nails, which can lead to infection and ulceration. The client should trim the toenails straight across and file any sharp edges.