A nurse is reinforcing teaching with a client who has schizophrenia and a new prescription for haloperidol. The nurse should instruct the client to avoid taking which of the following medications?
Diphenhydramine
Docusate sodium
Ibuprofen
Glucosamine
The Correct Answer is A
A. Diphenhydramine. Diphenhydramine is a first-generation antihistamine with anticholinergic properties that can increase the risk of central nervous system (CNS) depression when taken with haloperidol. Both drugs can cause sedation, confusion, and impaired coordination, increasing the risk of falls and other complications. Additionally, combining them can worsen extrapyramidal symptoms (EPS) or lead to anticholinergic toxicity, making it an unsafe combination.
B. Docusate sodium. Docusate sodium is a stool softener used to prevent constipation. Haloperidol can cause constipation as a side effect due to its anticholinergic properties, so docusate sodium is safe and may even be beneficial in preventing bowel complications.
C. Ibuprofen. Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) used for pain and inflammation. While it does not have a direct interaction with haloperidol, it should be used with caution in clients with a history of gastrointestinal issues or kidney disease. However, it does not pose a significant risk when taken alongside haloperidol.
D. Glucosamine. Glucosamine is a dietary supplement used to support joint health. It does not interact with haloperidol and does not have sedative or CNS effects. Clients taking haloperidol can safely use glucosamine if needed.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Deferoxamine. Deferoxamine is a chelating agent used to treat iron overload or toxicity. It has no role in managing an acute allergic reaction or respiratory distress caused by nafcillin, a penicillin-type antibiotic.
B. Vitamin K. Vitamin K is used to reverse the effects of warfarin-induced anticoagulation and is not indicated for treating an allergic reaction. Anaphylaxis is not related to coagulation disturbances, making this an inappropriate intervention.
C. Epinephrine. Epinephrine is the first-line treatment for anaphylaxis, which can present with difficulty breathing, bronchospasm, and hypotension. It works by stimulating alpha- and beta-adrenergic receptors, leading to bronchodilation, increased cardiac output, and vasoconstriction to counteract severe allergic reactions. Immediate administration is necessary to prevent further airway compromise and circulatory collapse.
D. Prednisone. Prednisone is a corticosteroid used to reduce inflammation and prevent delayed allergic reactions. While it may be prescribed as part of long-term management, it does not provide the rapid bronchodilation and vasoconstriction needed for emergency treatment of anaphylaxis.
Correct Answer is ["6"]
Explanation
Calculate the total daily dose:
Total daily dose (mg) = Weight (kg) x Dosage (mg/kg/day)
=14.9 kg x 40 mg/kg/day
= 596 mg/day
Calculate the dose per administration (divided into two doses):
Dose per administration (mg) = Total daily dose (mg) / Number of doses
= 596 mg/day / 2 doses
= 298 mg/dose
Calculate the volume to administer per dose:
Volume (mL) = Desired dose (mg) / Available concentration (mg/mL)
Available concentration = 250 mg / 5 mL
= 50 mg/mL
Volume (mL) = 298 mg / 50 mg/mL
= 5.96 mL/dose
Round to the nearest whole number:
5.96 mL is 6 mL/dose
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