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Another blood sample must be obtained for testing: To ensure accuracy and rule out laboratory error or false positives, the ELISA test is typically repeated using the same blood sample (or a new one depending on facility protocol) before moving to confirmatory testing.

The test is repeated in 6 to 8 months: This would delay diagnosis unnecessarily. While the "window period" is a factor in initial negative tests, a positive result requires immediate follow-up confirmation.

The diagnosis of AIDS is confirmed: A positive ELISA only indicates the presence of HIV antibodies; it does not diagnose AIDS, which is the advanced stage of HIV infection.

Two or more opportunistic infections are diagnosed: While opportunistic infections are a hallmark of AIDS, the clinical definition usually requires specific "AIDS-defining illnesses" or a specific CD4 count.

Kaposi sarcoma appears: Kaposi sarcoma is an AIDS-defining illness, but it is not the only way to determine progression; the CD4 threshold is the more universal laboratory marker.

Patient tested positive for ELISA: A positive ELISA indicates HIV infection, not the progression to the clinical stage of AIDS.

Slurred speech: This is typically a neurological finding (like a stroke) and is not a standard symptom of iron deficiency anemia.

Confusion: While severe anemia can cause hypoxia-related mental changes, it is not as common or specific as fatigue in iron deficiency.

Pain: Pain is more characteristic of sickle cell anemia (vaso-occlusive crisis) rather than iron deficiency anemia.

Long family history of cancer: Aplastic anemia is a bone marrow failure disorder, not typically a hereditary cancer, though it can lead to leukemia.

Regular blood donor: Regular blood donation might lead to iron deficiency, but it does not cause the bone marrow to stop producing all three blood cell lines (pancytopenia).

Gain of 5 lb in the last 2 years: Weight gain is not a clinical indicator or risk factor for the development of aplastic anemia.

Edema: Edema is usually related to fluid volume or protein levels, not directly to the bone marrow’s production of blood cells.

Hypovolemia: While severe hemorrhage can cause hypovolemia, the most direct result of bone marrow suppression regarding infection risk is the loss of white blood cells.

Hemorrhage: While chemotherapy can cause low platelets (thrombocytopenia) which leads to bleeding, the context of the question (visitors being free of infection) specifically points to the risk of neutropenia.

Administer heparin: Heparin is an anticoagulant and is not the indicated treatment for a transfusion reaction.

Notify the charge nurse: While notification is necessary, it is not the immediate priority to stabilize the patient's intravenous access or physical condition.

Raise the patient's head: This may help with breathing, but it is not the standard priority action over maintaining IV access for emergency meds.

Bone degeneration: While steroids used for lupus can cause osteoporosis, the disease itself is primarily an inflammatory connective tissue disorder.

Diabetes: Lupus is not a direct cause of diabetes, though steroid treatments can increase blood sugar.

Infertility: Many women with lupus can conceive, though the pregnancy is considered high-risk. It is not a primary "condition" of the disease itself in the same way CV disease is.

Recent weight gain of 10 lb: SLE patients more commonly experience weight loss due to systemic inflammation and illness.

Frequent episodes of diarrhea: Gastrointestinal symptoms are less specific to SLE than joint and skin manifestations.

Difficulty breathing in the morning: While SLE can cause pleurisy, "morning breathing difficulty" is more indicative of COPD or asthma; lupus joint stiffness is what is typically worse in the morning.

Seizure activity: While TTP itself can cause neuro symptoms, seizures during the procedure often point to electrolyte imbalances.

Diarrhea: This is not a common or recognized complication of the plasmapheresis procedure.

Intense headache: While possible due to blood pressure changes, hypotension is a more immediate and life-threatening hemodynamic complication during the procedure.

Obtain a complete allergy history: This is important for the future, but in an active anaphylactic crisis, it is a low priority compared to life-saving intervention.

Apply a cool compress: This is a comfort measure for mild localized reactions; it does nothing to stop the systemic life-threatening airway obstruction.

Administer oral antihistamines: Oral medications are absorbed too slowly for an emergency, and antihistamines do not treat the life-threatening airway constriction or hypotension associated with anaphylaxis.