A nurse is reviewing the medication list for a client who has a new prescription for warfarin. The nurse should recognize which is incompatible with warfarin?
Vitamin A
Alprazolam
Vitamin K
Furosemide
The Correct Answer is C
A) Vitamin A: While vitamin A can affect various bodily functions, it is not known to have a direct interaction with warfarin. Therefore, it is not considered incompatible with warfarin therapy.
B) Alprazolam: This medication, a benzodiazepine, is primarily used to treat anxiety and does not have a significant interaction with warfarin. Thus, it is not incompatible with warfarin therapy.
C) Vitamin K: This vitamin is a critical consideration when a client is on warfarin therapy. Warfarin works by inhibiting vitamin K-dependent clotting factors, so an increased intake of vitamin K can counteract the effects of warfarin, making this the correct answer. Clients on warfarin should maintain a consistent intake of vitamin K to prevent fluctuations in their INR levels.
D) Furosemide: This loop diuretic is used to manage conditions such as heart failure and edema. While it may affect electrolyte levels, it does not have a direct interaction that would render it incompatible with warfarin. It can be safely used alongside warfarin with appropriate monitoring.
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View Related questions
Correct Answer is B
Explanation
A. Within the expected reference range: While a blood pressure of 130/82 mm Hg is close to normal, it is not considered fully within the expected reference range. The normal range is typically defined as less than 120/80 mm Hg.
B. Elevated: The reading of 130/82 mm Hg falls into the "elevated" category, which is defined as systolic blood pressure between 120-129 mm Hg and diastolic pressure less than 80 mm Hg. This indicates that while the client is not hypertensive, they are at increased risk for developing hypertension in the future.
C. Stage 2 hypertension: This category is defined by a systolic reading of 140 mm Hg or higher, or a diastolic reading of 90 mm Hg or higher. The client’s reading does not meet these criteria, so this option is not applicable.
D. Stage 1 hypertension: Stage 1 hypertension is characterized by systolic readings between 130-139 mm Hg and diastolic readings between 80-89 mm Hg. Although the systolic reading is in the Stage 1 range, the diastolic reading of 82 mm Hg places the overall reading in the "elevated" category, rather than Stage 1 hypertension.
Correct Answer is C
Explanation
A) Apply cold therapy to the affected leg: Cold therapy may be used for certain conditions to reduce swelling and pain, but in the case of suspected deep vein thrombosis (DVT) indicated by redness, warmth, tenderness, and pain in the calf, cold therapy is not appropriate. Instead, the focus should be on confirming the diagnosis before applying any treatment.
B) Monitor Homan's sign: Homan's sign involves dorsiflexion of the foot to assess for pain in the calf, which can suggest DVT. However, it is no longer considered a reliable diagnostic tool. Instead, confirmation through imaging or other diagnostic measures is preferred, so simply monitoring this sign would not be sufficient in this situation.
C) Obtain a venous duplex ultrasound: A venous duplex ultrasound is the gold standard for
diagnosing DVT. Given the client’s symptoms—redness, warmth, tenderness, and pain in the calf—the appropriate order is to obtain this ultrasound to confirm the presence of a thrombus. This imaging study provides critical information for diagnosis and subsequent management.
D) Obtain impedance plethysmography: While impedance plethysmography can assess venous flow and help diagnose DVT, it is less commonly used than venous duplex ultrasound. The more direct and widely accepted method for diagnosing DVT in this scenario is the ultrasound, making this option less suitable as the initial order.