Which stage of the HIV lifecycle involves the virus attaching to the host cell membrane?
Binding
Integration
Fusion
Reverse Transcription
The Correct Answer is A
A. Binding is the initial step where the HIV virus attaches to the CD4 receptor on the host cell's surface. This interaction is crucial for the subsequent entry of the virus into the host cell.
B. Integration occurs later in the lifecycle, after the virus has entered the host cell and its RNA is converted to DNA.
C. Fusion refers to the process where the viral envelope fuses with the host cell membrane to allow entry into the cell, which follows the binding stage.
D. Reverse Transcription is the process of converting viral RNA into DNA after the virus has entered the host cell, and is not involved in the attachment phase.
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Correct Answer is C
Explanation
A. Pneumocystis lung infection is an opportunistic infection that typically occurs in later stages of HIV/AIDS when the immune system is significantly weakened, not during the initial phase of infection.
B. Fungal and bacterial infections are also associated with advanced HIV/AIDS due to immunosuppression and not seen in the initial phase of infection.
C. Flu-like symptoms and night sweats are common initial symptoms of HIV infection, often occurring 2-4 weeks after exposure during the acute retroviral syndrome phase.
D. Kaposi's sarcoma is a cancer associated with advanced HIV/AIDS and does not manifest during the initial symptoms of infection.
Correct Answer is D
Explanation
A. Cortisol levels are not directly affected by furosemide; monitoring for adrenal function is not a priority.
B. Bicarbonate levels are not specifically monitored for clients on furosemide; this medication's main effect does not relate directly to bicarbonate balance.
C. Albumin levels are not primarily affected by furosemide; although low albumin can affect fluid status, it is not the critical monitoring focus.
D. Potassium levels should be monitored because furosemide is a loop diuretic that can lead to hypokalemia, which is a common and significant side effect due to increased renal excretion of potassium.