he nurse is preparing to administer diphenhydramine (Benadryl) 50 mg intravenously to a patient with severe allergies. Available is diphenhydramine (Benadryl) 25 mg/1 mL. How many mL will the nurse administer?
______
The Correct Answer is ["2"]
The ordered dose is 50 mg, and the available concentration is 25 mg/mL.
50mg÷25mg/ml
=2mL
The nurse should administer 2 mL to deliver the correct dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Cephalosporin: Though cephalosporins can cause allergic reactions, they are less commonly associated with serum sickness compared to penicillins.
B. Epinephrine: Epinephrine treats allergic reactions and does not cause serum sickness.
C. Diphenhydramine: Diphenhydramine is an antihistamine used to alleviate hypersensitivity reactions.
D. Penicillin or Sulfonamide: These medications are classic triggers for serum sickness, a delayed hypersensitivity reaction involving immune complex deposition.
Correct Answer is C
Explanation
- Iritis: This is associated more with autoimmune conditions like ankylosing spondylitis rather than SLE.
- Spinal deformity is not a typical feature of SLE. Spinal deformities are more commonly seen in conditions like rheumatoid arthritis.
- Facial rash: The characteristic "butterfly" rash over the cheeks and nose is a hallmark finding in SLE.
- Thickened skin: SLE typically presents with skin lesions or rashes rather than skin thickening.
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