Problem: Article: In the winter months, water bowls and water bowls can potentially freeze. This will leave your rabbit without water, which he needs even in the winter. Check water bottles and bowls a few times a day. If they freeze, replace them promptly. Insulating water bottles can reduce their risk of freezing. You can wrap a water bottle in an old towel. You can also buy water bottles designed for winter use, which come wrapped in materials that keep them warm. Make sure to have lots of spare bottles handy. Plastic bottles especially may crack in the winter months. You do not want your rabbit to go without water in the event his bottle breaks. If your rabbits sometimes play outdoors, they may get wet in the snow. You want to make sure to dry your rabbits off before putting them back in their hut. Dry your rabbits with a towel. If they're still wet, let them warm up indoors. Allow them to dry indoors naturally. Do not put them by a heater to dry. If you have more than one rabbit, try to keep them in pairs over the winter. This will both provide socialization and help keep your rabbit warm. Rabbits can snuggle with one another in the winter months for heat. If you haven't introduced rabbits, take some time with the introduction process before winter. It may take awhile for rabbits to get comfortable with one another. Make the first introduction in neutral space, like a room in your home. Rabbits are territorial and throwing them in a cage together right away can be a disaster. Introduce the rabbits in 20 minute increments. In the event of fighting, separate them and then try again in an hour or so. You can use a water bottle to break up fights. Keep your rabbits in eye contact with each other when they're not interacting. Once they seem comfortable with one another in a neutral space, you can try caging them together for short periods. Eventually, you should be able to move your rabbits into the same cage for the longterm. Some rabbits may simply not get along, even with your best efforts. If your rabbits continually fight, it's better not to cage them together. If rabbits get aggressive or territorial, they could injure one another. As it grows colder, make sure you regularly clean your rabbit's cage. Urine can cause bedding, straw, and hay to dampen and even freeze. This can cause health problems if not dealt with properly. Remove any clumps of urine from your rabbit's cage on a daily basis, paying special attention to his bedding area.
Summary: Make sure water bottles and bowls don't freeze. Dry rabbits if they play in the snow. Keep rabbits in pairs. Clean the cage regularly during colder months.

Problem: Article: Creatinine is a waste product produced by the body when creatine, a metabolism substance that helps convert food into energy, breaks down. Usually, your kidneys help filter creatinine out of the blood. The waste product is then passed out of the body via urine. High creatinine levels can indicate a problem with your kidneys. High creatinine levels can be the result of regularly consuming a high amount of protein or partaking in strenuous exercise. Creatine supplements may also increase levels of creatinine in blood and urine. A creatinine test measures how much creatinine is in your blood. Your doctor may also perform a creatinine clearance test, which measures the amount of creatinine in your urine. The amount in your blood should be low, and the amount in your urine should be high. These tests only provide a "snapshot" of your kidney health. They only measure the amount of creatinine in your blood and urine from one-time samples taken within the past 24 hours. The normal range for creatinine levels will vary based on whether you are an adult male, adult female, teenager, or child. The value you should be at may vary further based on your age and body size, but there are general ranges you should shoot for. Normal blood creatinine levels are: Men: 0.6 to 1.2 mg/dL; 53 to 106 mcmol/L Women: 0.5 to 1.1 mg/dL; 44 to 97 mcmol/L Teenagers: 0.5 to 1.0 mg/dL Children: 0.3 to 0.7 mg/dL Normal urine creatinine levels are: Men: 107 to 139 mL/min; 1.8 to 2.3 mL/sec Women: 87 to 107 mL/min; 1.5 to 1.8 mL/sec Anyone above the age of 40: levels should drop by 6.5 mL/min for every additional 10 years of age There are several different reasons why you might have increased creatinine levels; some of these conditions are more severe than others, but all mean that you need to take steps to get your creatinine levels back to normal. Renal failure or impairment: If your kidneys are damaged, they cannot filter creatinine out of your body through glomerular filtration as they are supposed to. Glomerular filtration is the outflow of filtered fluid passing through your kidney. Muscle destruction: If you have a condition that causes the breakdown of your muscles, the broken down muscle tissue can get into your bloodstream and impair your kidneys. High intake of meat: Eating a diet rich in cooked meat can increase the amount of creatinine in your body. Hypothyroidism: Having a dysfunction in your thyroid gland can have an influence on your kidney function. Hypothyroidism can decrease your kidneys' ability to properly filter waste out of your body.
Summary:
Know what creatinine is. Understand how the test works. Interpret your results. Understand why increased creatinine levels occur.