A nurse is caring for a client due for their dose of carvedilol (Coreg). The nurse completes vital signs prior to administration of the medication. Which vital sign would be an indication to hold the dose scheduled and notify the healthcare provider?
Blood pressure 102/76
Temperature of 100.3 F
Respiratory rate 10
Heart rate of 49
The Correct Answer is D
A) Blood pressure 102/76: While this blood pressure reading is on the lower side, it does not typically warrant withholding carvedilol unless the client exhibits symptoms of hypotension, such as dizziness or fainting. Carvedilol is an antihypertensive, but the reading itself is not critically low enough to necessitate holding the medication.
B) Temperature of 100.3 F: A mild fever at this temperature does not directly relate to carvedilol administration. It may indicate an underlying infection or inflammation, but it is not a contraindication for administering the medication. Monitoring the client’s temperature is important, but it does not require notifying the healthcare provider in this context.
C) Respiratory rate 10: A respiratory rate of 10 breaths per minute indicates bradypnea, which can be concerning. However, it is not the primary reason to withhold carvedilol unless the client shows significant respiratory distress. Monitoring is essential, but the decision to withhold the medication would depend on the overall clinical picture.
D) Heart rate of 49: A heart rate of 49 bpm is considered bradycardia and is a significant concern when administering carvedilol, a beta-blocker that can further decrease heart rate. It is essential to hold the medication and notify the healthcare provider, as this bradycardia could lead to potential adverse effects or complications. Monitoring the client's heart rate is crucial in managing their medication safely.
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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.
Correct Answer is C
Explanation
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.