Blood and Lymphatic
What Does a Positive COVID Lateral Flow Test (LFT) Look Like? Clinically Reviewed by Dr. Andrew Stein MD, Consultant Physician. Last updated: June 2026 Navigating COVID-19 testing is straightforward o...
How Often Should GFR Be Monitored in CKD? Keep track of your kidney data with PKB Monitoring kidney function is a key part of managing chronic kidney disease (CKD). One of the most important markers i...
What does the gall bladder do? (5 functions) The gallbladder is a small but specialised organ in the digestive system. While many people only hear about it when they develop gallstones, it plays a vit...
How to Spot the Signs of Skin Cancer: A Visual Guide Identifying Melanoma, SCC, and BCC Before They Spread Skin cancer is the most common form of cancer worldwide. While most cases are caused by ultra...
What Bit Me? How to Identify Common Bug Bites and Stings (With Symptoms & Pictures) A bite or sting on the skin is a frequent cause of redness, swelling, pain, or itching. Most insect bites and st...
What is normal respiratory rate? Normal Respiratory Rate = 15 breaths per minute (range = 12 to 18). A respiration rate under 12 or over 25 breaths per minute while resting may be a sign of an underly...
What is a normal heart rate? 60-100 beats per minute. In other words, there is no normal value – there is a normal range. A typical resting heart rate for adults ranges between 60 and 100 beats...
How can I check results of my blood tests? We recommend your join an excellent free web service called Patient Knows Best (PKB). It shows your latest blood test results. It can also show (for some peo...
What You Need to Know About Your Allergies: The Ultimate Safety Guide Why Keeping an Accurate Allergy Record Can Save Your Life An allergy is your immune system’s overreaction to a normally harmless s...
What do the tonsils do (5 functions)? Have you ever wondered why we have those small lumps of tissue at the back of our throats? While they might seem like “optional” parts of the body, to...
