Which of the following terms would indicate to the nurse that a substance is toxic to the ear?

Correct Answer: B

Rationale: The term "ototoxic" indicates that a substance has the potential to cause damage to the ear or auditory system. Ototoxic substances can lead to hearing loss or damage to the inner ear structures. Therefore, if a nurse encounters the term ototoxic in a clinical setting, it would indicate that the substance being discussed is toxic to the ear. The other options, otoplasty, otalgia, and tinnitus, do not specifically indicate toxicity to the ear.

Correct Answer: D

Rationale: Levothyroxine (Synthroid) is the agent of choice for thyroid hormone replacement therapy in clients with hypothyroidism. Levothyroxine is a synthetic form of the thyroid hormone T4 and is considered a stable and reliable medication for thyroid replacement. It is usually well tolerated and has a consistent potency, making it easier to adjust the dosage based on the client's thyroid hormone levels. Levothyroxine is typically taken orally once daily on an empty stomach, preferably in the morning, to ensure optimal absorption. In contrast, Methimazole (Tapazole) is used to treat hyperthyroidism by inhibiting the production of thyroid hormones, Livothyronine (Cytomel) is a synthetic form of the thyroid hormone T3, and Thyroid USP dessicated (Thyroid USP) is a natural preparation derived from porcine thyroid glands,

Correct Answer: B

Rationale: The correct option is B - Use a soft toothbrush and electric razor. When a patient is diagnosed with myelocytic leukemia and has bone marrow depression as indicated by laboratory results, the platelet count is usually low which can lead to increased risk of bleeding. Therefore, it is important for the patient to use a soft toothbrush and electric razor to minimize the risk of injury and bleeding. Hard toothbrushes and sharp razors can cause damage to the gums and skin, leading to bleeding complications. It is essential to take precautions to prevent injury and promote safety for the patient undergoing chemotherapy with bone marrow depression.

Correct Answer: C

Rationale: Hepatitis is inflammation of the liver, and it can be caused by viruses, toxins, or chemicals and drugs. Bacteria, however, do not typically cause hepatitis. Common viral causes of hepatitis include hepatitis A, B, and C. Toxins like alcohol and certain medications, as well as exposure to chemicals, can also lead to hepatitis. Therefore, bacteria are not considered one of the primary causes of hepatitis.

Correct Answer: C

Rationale: Compartment syndrome is a serious condition that can occur when increased pressure within a muscle compartment impairs blood supply, leading to tissue ischemia and potential necrosis. Symptoms of compartment syndrome include severe, unrelieved pain that is disproportionate to the injury, as well as pain with passive stretch of the affected muscles. This pain is often described as deep, constant, and out of proportion to physical findings. Other signs that may indicate compartment syndrome include pallor, pulselessness, paresthesia, and paralysis, but the most specific and early sign is severe, unrelieved pain. While weak movement of the patient's toes and decreased pedal pulses can also be seen in compartment syndrome, they are not as specific or early indicators as severe, unrelieved pain.