The scales found on birds are made of keratin, the same material that forms the beak, claws and spurs.
The scale are mainly found on the toes of the bird and also on the metatarsus. Some may be found a little up the ankle.
The scales of birds were thought to be similar to those found on reptiles and mammals, but research done in recent times has shown they are somehow different.
The nurse must<span> determine before discontinuing airborne </span>precautions if the sputum is free of acid – fast bacteria. Sputum is a mixture of saliva and mucus coughed up by the patient from his respiratory tract. This is typically a result of infection or other diseases.
Digital rectal examination, or DRE for short. "Digital" refers to the use of digits (fingers) into the rectum to palpate (feel) the prostate's surface contours.
