Cystic fibrosis (CF) is an autosomal recessive genetic disorder which causes abnormalities in the secretory glands that produce mucus and sweat and mostly affects the lungs, pancreas, liver, intestines and sex organs. The mucus that is produced in the body becomes thick and sticky. Instead of lubricating the lungs and other organs, it clogs the airways in the lungs and the ducts, most frequently in the pancreas and liver. Almost all males with CF are sterile and most females have a hard time getting pregnant. Symptoms can range from mild to severe. CF can lead to other diseases such as diabetes and osteoporosis. Screening for CF is routinely done on newborns and diagnosis is generally made before symptoms are evident, often within the first month of life.
Cystic Fibrosis is caused by a recessive defect in the CFTR gene. The CFTR gene makes a protein that regulates the movement of salt and water through the cells. The mutation causes the protein to either not work very well, or not be produced at all. When this happens, there is no regulation of salt and water across the cell membranes and mucus that the body produces becomes dehydrated and salty. The hallmark sign for this disease is a salty taste to the skin.
Patient will maintain adequate ventilation and respiratory status; patient will have optimal nutritional status; patient will be free from infection.
CF patients get frequent respiratory infections because the thick mucus in the lungs traps bacteria and becomes infected.
Children may fail to thrive and lose weight or not grow properly because of malabsorption. The body does not absorb nutrients well enough to feed the cells adequately.
Lack of water regulation in the cells prevents adequate lubrication in the colon and often results in constipation. Newborns may have a meconium ileus that prevents the infant from passing meconium stools.
Feeding tubes may be placed to help with nutrition and absorption.
Children may have adequate diet, but the body cannot absorb the nutrients. A blockage of the pancreas prevents digestive juices from being released into the intestines which aids in absorption of nutrients.
CF related diabetes is common due to the impairment of the pancreas
Lung infections are common in patients with CF. Culturing the sputum can help determine bacteria involved and course of treatment.
Educate patients and caregivers that they should avoid sick contacts and stay away from other CF patients who may be ill, due to susceptibility to infections.
Patients with CF lose excess amounts of fluid and salt and can become dehydrated or develop hyponatremia quickly.
Bones may become thin, patient develops osteoporosis or osteopenia in the later stages. Fractures are common.
Note clubbing, or widening, around the tips of the fingers and toes due to poor oxygenation of tissues
Thick mucus in the lungs and weakened muscles make it difficult for patients to expel secretions. Suctioning may be required.
This technique helps loosen mucus within the lungs making it easier to expel or suction
For more information, visit www.nursing.com/cornell
Get unlimited access to lessons and study tools