Before you donate blood, it’s important to know the guidelines and requirements. You must be at least 17, weigh at least 110 pounds, and be healthy enough to donate blood. Additionally, inform the healthcare provider conducting your health screenings if you have a chronic medical condition.Moreover, people with low red blood cell levels may not be eligible to donate blood. If you have anemia or low hemoglobin, it is best to ask your primary healthcare provider whether you can donate.In some cases, you may need to wait before donating blood, especially if you have recently traveled outside the country. Traveling to a region with high rates of malaria can put both you and others at risk. Therefore, consult a healthcare provider to determine how long you should wait before donating blood after international travel.For healthy adults, blood donation can be planned at regular intervals. You can donate whole blood every 56 days, up to six times per year. However, there should be at least an eight-week gap between whole blood donations and a 16-week gap for red blood cell donations. On the other hand, platelet donation is possible every seven days, up to 24 times a year.If you feel unsure or anxious about donating blood, understanding what to expect can help ease your concerns. When you arrive at a donation site, you will be asked to check in and provide photo identification. Then, a trained healthcare provider will perform a quick physical exam and blood draw.To donate whole blood, you will sit in a chair or recliner. If you feel dizzy during or after the procedure, you may lie down. Next, a healthcare provider will inspect the veins in your arm and clean a small area of your skin. They will then insert a sterile needle and connect the tubing to collect blood. The process takes about 8 to 10 minutes to collect a pint of blood. Once finished, the provider will remove the needle, apply gauze, and hold pressure on the needle site.After donating blood, consider staying at the site to rest. Most organizations provide water and snacks to donors after their donation. If you feel dizzy or nauseous, inform the healthcare provider immediately.The same precautions should be taken before and after donating blood. It is recommended to drink extra water, eat a light and healthy meal beforehand, and have a snack afterward.To make your blood donation experience faster and easier, wear a short-sleeved or loose-sleeved shirt. Additionally, you may bring a book, listen to music, or enjoy a podcast during the procedure.Finally, after donating blood, rest with your legs elevated and avoid high-intensity physical workouts for the rest of the day. It is also advisable to eat iron-rich foods such as eggs, salmon, or whole grains to replenish nutrients. If you feel unwell after giving blood, notify a staff member immediately.(Adapted from https://shorturl.at/IJxLD)What does the pronoun “they” in paragraph 6 refer to in the sentence “They will then insert a sterile needle…” …