Primary Mechanisms of Disease Flashcards
a disorder of nutrition caused by primary deprivation of protein-energy or secondary to deficiency diseases
Malnutrition
Kwashiorkor syndrome
deficiency of protein in the presence of adequate energy (infants) - trauma, burns, sepsis
Marasmus syndrome
combines protein and energy insufficiency, chronic diseases - 20% hospitalized patients
Group of disorders in which intestinal absorption of dietary nutrients is impaired
Malabsorption
loss of appetite
anorexia
forceful expulsion of chyme from the stomach and sometimes from the intestine
emesis, vomiting
blood in vomitus resembling coffee grounds, a brown granular material
hematemesis
yellowish, greenish vomitus is from
the duodenum
deeper brown color
content from lower intestine, recurrent vomiting in persons with intestinal obstruction
recurrent vomiting of undigested food from previous meals
possible pyloric obstruction - problem with gastric emptying
anorexia nervosa
psychological disturbance in which hunger is denied by self-imposed starvation, resulting from a distorted body image and a compulsion to be thin
signs and symptoms: anorexia nervosa
-female adolescent who is meticulous, is a high achiever, and refuses food intake.
-preoccupied with obesity and obsessed with her weight.
-experiences unfazed weight loss.
-family members bring forth attention to provider
-thin hair
-poor wound healing
-dental changes
-amenorrhea, cold intolerance, constipation, bloating, abdominal distress
-hyperactive, over-exercises
-hypotensive, bradycardic, hypothermic
-sadness, insomnia, FOMO
etiology: anorexia nervosa
unknown. family/societal factors are believed
diagnosis: anorexia nervosa
clinical picture and history.
-weight loss (15%)
-emaciated
-fear of weight gain
-absent or irregular menstruation
-hypotensive and bradycardic on exam
-blood tests, UA, ECG
treatment: anorexia nervosa
promote weight and restore nutrition
prognosis: anorexia nervosa
favorable when help is sought timely and willingly
prevention: anorexia nervosa
no certain prevention
patient teaching: anorexia nervosa
build trust and sensitivity in presenting recovery plan
behavioral disorder characterized by recurring episodes of binge eating followed by self-induced vomiting or purging, usually in secret
bulimia
signs and symptoms: bulimia
-binge-purge eating
-fear of becoming fat
-poor dentition, pharyngitis, esophagitis, aspiration, electrolyte abdn.
-gastric dilatation
-abuse laxatives
-compulsive exercise
-swollen salivary glands
-broken blood vessels in eyes
-periods usually followed by self-imposed starvation
-preserved menstruation
patient screening: bulimia
shame and denial of disease
etiology: bulimia
uncertain. psychosocial factors
prognosis: bulimia
years-long treatment, slow process. rare death
pt teaching: bulimia
encourage complicity with POC
disease of the small intestine that is characterized by malabsorption, gluten intolerance, and damage to the lining of the intestine
celiac disease
symptoms and signs: celiac disease
-multisystem
-weight loss
-anorexia
-abdominal cramping
-diarrhea
-flatulence
-abdominal distention
-intestinal bleeding
-weakness
-muscle wasting
-dermatitis herpetiformis
-large, pale, greasy, foul-smelling stools
-malabsorption and malnutrition
etiology: celiac disease
toxic or immunologic reaction to a component of gluten.
genetic factor, occurrence is higher in siblings.
diagnosis: celiac disease
1- positive serologic testing
2- biopsy of small intestine showing changes or destruction of mucosal lining
3- improvement while on a gluten-free diet
treatment: Celiac disease
strictly adhere to gluten free diet. gut heals and reverses malabsorption
prognosis: celiac disease
gradual recovery, life-long gluten free diet. risk for cancer and malnutrition, specially in children.
refers to an excess amount of body weight that may be a result of muscles, bone, fat, and water
overweight
excess amount of body fat
obesity
measure for obesity
body mass index (BMI)
condition in which the body’s cells become resistant to the effects of insulin and changes in metabolism
insulin resistance - can lead to DM2
inflammatory markers seen in obese state
C-reactive protein, IL-6
Primary prevention
protect healthy people from developing a disease or experiencing an injury in the first place
secondary prevention
interventions after an illness or serious risk factors have been diagnosed. goal is to halt the disease in its earliest stages.
tertiary prevention
helps people manage complicated, long-term health problems
what level of effects of abnormalities does pathphysiology focus on?
organ level, noticing cellular changes
essential lab procedures for pathophysiology
-biopsy
-autopsy
-analysis of body fluids
identification of a specific disease through evaluation of signs and symptoms, lab test, or other tools
diagnosis
causative factors in a particular disease
etiology
unknown etiology
idiopathic
disease caused by error, procedure, treatment
iatrogenic
encompass the tendencies that promote the development of a disease in an individual indicating a high risk
predisposing factor
examples of predisposing factors
age, gender, inherited factors, occupational exposure, certain dietary practices
measure designed to preserve health and prevent the spread of a disease
prophylaxis