A nurse is assisting with the care of a postoperative client following a total knee replacement. Which of the following medications should the nurse anticipate the provider to prescribe to prevent the formulation of a deep vein thrombosis (DVT)?
Warfarin
Alteplase (PA)
Clopidogrel
Enoxaparin
The Correct Answer is D
A. Warfarin. Warfarin (Coumadin) is an anticoagulant used to prevent blood clots, but it typically requires several days to achieve a therapeutic effect and needs close monitoring of INR (International Normalized Ratio) levels. While it can be used for long-term prevention of DVT, it's not the immediate choice for post-operative prophylaxis.
B. Alteplase (tPA). Alteplase is a thrombolytic agent, used to break down existing clots, not prevent their formation. It is typically used in emergency situations, such as for treating ischemic stroke.
C. Clopidogrel. Clopidogrel is an antiplatelet agent, often used to prevent arterial clots, not DVTs. It is more commonly used in conditions like stroke and heart disease.
D. Enoxaparin. Enoxaparin, a low molecular weight heparin, is commonly used to prevent DVT after surgery by inhibiting specific clotting factors. It’s frequently prescribed for DVT prevention in orthopedic surgery patients.
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Correct Answer is ["A","C","E"]
Explanation
A. A clean catch urinalysis and urine culture: A urinalysis and culture are essential to identify the presence of infection, type of bacteria, and appropriate antibiotic sensitivity.
B. Foley catheter placement: Foley catheters are not routinely indicated for suspected urinary tract infections (UTIs) unless there is an issue with urinary retention or other specific medical indication.
C. Broad-spectrum antibiotic: Initiating a broad-spectrum antibiotic may be appropriate while waiting for culture results to address infection.
D. 0.9% sodium chloride infusion at 100 ml/hr: IV fluids are not typically necessary for a UTI unless the patient is dehydrated or unable to take oral fluids.
E. WBC count: A WBC count can help assess the systemic inflammatory response and gauge the severity of the infection.
F. Blood cultures × 2: Blood cultures are generally reserved for cases where a systemic infection or sepsis is suspected, which is not indicated by this patient's symptoms alone.
Correct Answer is B
Explanation
A. Conjunctivitis. Conjunctivitis generally presents with redness and discharge but does not cause elevated intraocular pressure, severe pain, or visual disturbances like halos.
B. Acute angle-closure glaucoma. Acute angle-closure glaucoma is characterized by sudden severe eye pain, blurred vision, halos around lights, nausea, and vomiting, along with elevated intraocular pressure and a cloudy cornea.
C. Retinal detachment. Retinal detachment may cause sudden vision loss or flashing lights but typically lacks pain, nausea, or vomiting, and does not affect intraocular pressure.
D. Migraine with aura. A migraine with aura may cause visual disturbances but does not present with eye pain, red eye, or elevated intraocular pressure.