Airflow Meter. An airflow meter measures air velocity as well as air pressure. Depending on the type of application, the airflow meter is made as a hot-wire airflow meter, a vane airflow meter, a cup anemometer, a Pitot tube air flow meter or a pocket weather flow meter, all of which can measure air velocity as well as air pressure. Some can even detect the wind direction.
While hemorrhoids can bleed, the amount of actual blood loss is typically slight, so anemia is very uncommon with bleeding hemorrhoids. If you are on blood thinners, such as Aspirin and warfarin, the bleeding might be more impressive, but again anemia would be unexpected.
Symptoms of Hemorrhoids. 1  External hemorrhoid symptoms include a painful hard bump on the edge of or just outside the anus. External hemorrhoids may be accompanied by anal itching, bleeding and pain upon defecation. Internal hemorrhoid symptoms include bright red blood on toilet paper, in stool, or in the toilet after a bowel movement (often the first and only symptom). There may also be a discharge of mucus from the anus.