In a close-ended manometer, one end of the manometer is attached to the high-pressure gas, and the other has a vacuum of gas instead of being open to the air. Barometers also fill this function, but measure only atmospheric gases.
The most common HIV symptoms in women in this stage include: 1  Body rash. 2  Fever. 3  Sore throat.  Severe headaches.
HIV may not cause symptoms early on. People who do have symptoms may mistake them for the flu or mono. Early symptoms of HIV are called acute retroviral syndrome. The symptoms may include: 1  Belly cramps, nausea, or vomiting. 2  Diarrhea. 3  Enlarged lymph nodes in the neck, armpits, and groin. 4  Fever. 5  Headache. 6  Muscle aches and joint pain. 7  Skin rash.