A nurse knows that the liver is a common site for metastasis from other primary cancers due to:

A. Blowing your nose hard when the dizziness first begins is not a recommended action for Meniere's disease. Blowing the nose forcefully can increase pressure in the ears and potentially worsen symptoms of vertigo, not alleviate them.
B. Laying down and keep your head still is a recommended strategy for managing vertigo in Meniere's disease. Resting and keeping the head still can help reduce the sensation of spinning or dizziness, providing some relief. Movement can trigger or worsen vertigo, so staying still is an effective way to reduce symptoms.
C. While salt intake is often restricted in Meniere's disease due to its potential to increase fluid retention in the inner ear, potassium supplements are generally not a standard recommendation. Dietary changes should be discussed with a healthcare provider.
D. Hydration is important for overall health, but this is not a specific recommendation for reducing vertigo in Meniere's disease. It may help with general wellness, but it won't directly alleviate the symptoms of vertigo associated with the condition.

A. Platelet count of 50,000 is low (normal is usually 150,000-450,000), and this can be associated with bone marrow depression caused by chemotherapy. However, bone marrow depression itself doesn't cause a fever directly. The low platelet count increases the risk of bleeding, but it wouldn't necessarily lead to a temperature elevation by itself.

B. Nausea and vomiting are common side effects of chemotherapy but are not directly related to bone marrow depression. Bone marrow depression typically affects the production of blood cells (red blood cells, white blood cells, and platelets), but nausea and vomiting are more directly associated with the chemotherapy agents themselves rather than the resulting bone marrow suppression.

C. A fever of 38.9°C (102°F) could indicate an infection, which is a serious risk for patients with bone marrow depression due to chemotherapy. The suppression of white blood cell (WBC) production from chemotherapy leads to neutropenia, leaving the patient more vulnerable to infections. A fever in this context is a medical emergency and requires immediate attention, as it may signify a bacterial or fungal infection, which could be life-threatening in an immunocompromised patient.

D. Alopecia (hair loss) is a well-known side effect of chemotherapy, but it is not a direct consequence of bone marrow depression. It is more related to the chemotherapy drugs affecting rapidly dividing cells, like those in hair follicles. While it is a common and distressing symptom, it is not an indicator of bone marrow function or depression.