The nurse is administering SUBO enoxaparin to a client following knee replacement surgery to prevent a deep vein thrombosis. Which laboratory result requires immediate action by the nurse?

Reference Range:

Hematocrit [42% to 52% (0.42 to 0.52 volume fraction)] Platelets [150,000 to 400,000/mm3 (150 to 400 x 109/L]] Creatinine [0.5 to 1.1 mg/dL (44 to 97 pmol/L)]

Blood Urea Nitrogen (BUN) [10 to 20 mg/dL (3.6 to 7.1 mmol/L)]

A) Protect the skin from sunlight while taking the drug: Tetracycline is known to increase sensitivity to sunlight, leading to a higher risk of sunburn and skin reactions. Advising clients to protect their skin from sun exposure and to use sunscreen is essential to prevent these adverse effects. This precaution helps mitigate the risk of photosensitivity reactions that are commonly associated with tetracycline use.
B) Take with orange juice to enhance gastrointestinal (GI) absorption: Tetracycline should not be taken with dairy products or antacids, as they can bind with the medication and reduce its absorption. While orange juice can enhance absorption, this is not a standard recommendation for tetracycline. Instead, it is generally advised to take tetracycline with water and avoid substances that could interfere with its absorption.
C) Return to the clinic weekly to obtain serum drug levels: Tetracycline typically does not require regular monitoring of serum drug levels, as it does not have a narrow therapeutic index like some other drugs. Instead, patients are generally advised on how to manage side effects and adherence to the medication regimen, rather than frequent clinic visits for drug level monitoring.
D) Take with milk or antacids to prevent gastrointestinal (GI) irritation: Milk and antacids should be avoided when taking tetracycline because they can bind to the medication and significantly reduce its effectiveness. This instruction could lead to decreased therapeutic efficacy and should be avoided. Tetracycline should be taken on an empty stomach to ensure optimal absorption, avoiding interactions with these substances.

A. Until a smaller angle can be restored: Open-angle glaucoma is characterized by a gradual increase in intraocular pressure due to the obstruction of the outflow of aqueous humor, not by a narrow angle. The treatment aims to control eye pressure rather than restore the angle, which is more relevant to acute angle-closure glaucoma.
B. For long-term control of normal eye pressure: Open-angle glaucoma is a chronic condition that requires ongoing management to maintain normal intraocular pressure and prevent damage to the optic nerve. The prescribed eye drops help in managing intraocular pressure over the long term to prevent vision loss.
C. For long-term control of pain and swelling: Open-angle glaucoma typically does not present with pain and swelling. The goal of treatment is to control intraocular pressure rather than address pain or swelling, which are not primary symptoms of this condition.
D. Until the excess pressure is reduced: While initial treatment aims to reduce intraocular pressure, open-angle glaucoma requires ongoing use of medications to maintain normal pressure levels and prevent progression of the disease. Discontinuing the medication after initial pressure reduction can lead to a return of elevated intraocular pressure.