Exam 1 Flashcards
Digestion
begins with the act of chewing, in which food is broken down into small particles that can be swallowed and mixed with digestive enzymes
Absorption
Absorption is the major function of the small intestine. Vitamins and minerals absorbed are essentially unchanged. Absorption begins in the jejunum and is accomplished by active transport and diffusion across the intestinal wall into the circulation
Elimination
phase of the digestive process that occurs after digestion and absorption when waste products are eliminated from the body
Chyme
mixture of food with saliva, salivary enzymes, and gastric secretions that is produced as food passes through the mouth, esophagus, and stomach
Amalase
an enzyme that aids in the digestion of starch
dyspepsia
indigestion; upper abdominal discomfort associated with eating
hydrochloric Acid
acid secreted by the glands in the stomach; mixes with chyme to break it down into absorbable molecules and to aid in the destruction of bacteria
intrinsic Factor
a gastric secretion that combines with vitamin B12 so that the vitamin can be absorbed
Lipase
an enzyme that aids in the digestion of fats
Pepsin
a gastric enzyme that is important in protein digestion
trypsin
enzyme that aids in the digestion of protein
microbiota
the complement of microbes in the GI tract
gingivitis
inflammation of the gums
Periapical abscess
abscessed tooth. Acute infection or chronic slow progressive infection.
Presence of pus in the apical dental periosteum and tissue surrounding the apex
Clinical manifestations: pain, cellulitis, facial edema, fever, malaise
Managing a peripheral abscess
Medical
Needle aspiration
Drill opening to relieve pressure, pain, and promote drainage
After acute phase tooth may be extracted
Antibiotics
Nursing
Assess for bleeding
Instruct to use warm saline/water rinse
Take antibiotic and analgesic
Keep follow up appointment
Parotitis
inflammation of the parotid gland
sialadenitis
inflammation of the salivary glands
sialolithiasis
salivary stones
Neoplasms
Leukoplakia
white patches in the buccal mucosa
- may become malignant
Oral hairy Leukoplakia: potentially viral, typically found on the tongue
Lichen Planus
Radiating white striations on the tongue and buccal mucosa
Erythroplakia
red patch on the oral mucosa
kaposi sarcoma
Appears first on the oral mucosa as red, purple or blue lesions
stomatitis
Erythema and edema of the oral mucosa
manifestations of oral cancer
Early Stage
Few or no symptoms in early stage
Painless sore or mass that does not heal; indurated ulcer with raised edges
Lesions that do not heal within 2 weeks should be reported
May bleed easily and present with red or white patch
Later manifestations include:
Complaints of tenderness
Difficulty in chewing, swallowing, or speaking
Coughing up blood-tinged sputum
Enlarged cervical lymph nodes
3 main types of oral cancer
Squamous cell carcinoma
Most common
May be present on lips, tongue, buccal mucosa and oropharynx
Basal Cell
Affects the lips and skin around the mouth
Kaposi’s sarcoma
Can be found on the hard palate, gums, tongue or tonsils
xerostomia
dry mouth
radical neck dissection surgery
A radical neck dissection involves removal of all cervical lymph nodes from the mandible to the clavicle and removal of the sternocleidomastoid muscle, internal jugular vein, and spinal accessory muscle on one side of the neck
The associated complications include shoulder drop and poor cosmesis (visible neck depression)
Modified radical neck dissection used more often
Leaves sternocleidomastoid intact
chyle fistula
Milk like drainage from the thoracic lymphatic duct into the thoracic cavity
achalasia
Absent or ineffective peristalsis of the distal esophagus by failure of the esophageal sphincter to relax in response to swallowing
Treatment
Pneumatic Dilation
Diverticula
Out-pouching of mucosa and submucosa that protrudes through a weak portion of the esophagus
Most common type: Zenker Diverticulum
May need to be surgically removed
( things can go into then and that can increase the risk for infection)
Barrett’s Esophagus
Lining of the esophageal mucosa to resemble the intestinal mucosa
Occurs in association with GERD
Only precursor to Esophageal Adenocarcinoma
( just because you have barrett’s does not mean you are going to get the cancer. )
Hiatal Hernia
located in the opening of the diaphragm
dysphagia
difficulty swallowing
odynophagia
pain on swallowing
GERD Gastroesophageal reflux disease
Common disorder marked by backflow of gastric or duodenal contents into the esophagus that causes troublesome symptoms and/or mucosal injury to the esophagus
Excessive reflux may occur because of an incompetent lower esophageal sphincter, pyloric stenosis, hiatal hernia, or a motility disorder
Antacids
Calcium antacids (TUMS) may lead to the development of kidney stones and increased gastric acid secretion.
Antacids containing magnesium must be avoided in patients with renal failure.
Sodium bicarbonate is a highly soluble antacid form with a quick onset but short duration of action. (contraindicated for patients with hypertension or heart issues)
H2 Receptor Antagonists
Cimetidine
Ranitidine
Famotidine
Inhibits action of histamine on H2 receptor sites of parietal cells decreasing gastric acid secretion
* can cause confusion in elderly*
Adverse Reactions: CNS: Dizziness, confusion
GI: Constipation, diarrhea
Indications:GERD (gastroesophageal reflux disease)
-Erosive Esophagitis
-Peptic ulcer disease
-Adjunct therapy in the control of upper GI bleeding
Proton Pump Inhibitors
Omeprazole
Pantoprazole
Lansoprazole
Inhibits proton pump activity by binding to hydrogen-potassium adenosine triphosphate, located at secretory surface of gastric parietal cells, to suppress gastric acid secretion
* take 30 min to an hour before 1st meal.*
Adverse Reactions: GI: Diarrhea, abdominal pain, possible predisposition to C. Diff
Musculoskeletal: Long term use potentially linked to osteoporosis
Indications: - H. Pylori
-NSAID induced ulcers
-Erosive esophagitis
-Symptomatic GERD that is unresponsive to H2 Receptor Antagonists
Gastritis
Inflammation of the stomach
Acute: rapid onset of symptoms usually caused by dietary indiscretion. Other causes include medications, alcohol, bile reflux, and radiation therapy. Ingestion of strong acid or alkali may cause serious complications
Chronic: prolonged inflammation due to benign or malignant ulcers of the stomach or by Helicobacter pylori. May also be associated with some autoimmune diseases, dietary factors, medications, alcohol, smoking, or chronic reflux of pancreatic secretions or bile
Peptic Ulcer Disease
Erosion of a mucous membrane forms an excavation in the stomach, pylorus, duodenum (most common), or esophagus
Manifestations include a dull gnawing pain or burning in the midepigastrium; heartburn and vomiting may occur
Treatment includes medications, lifestyle changes, and occasionally surgery
H. Pylori infection is most common cause. (antibiotics needed)
NSAIDs
Contraindicated in GI issues
Misoprostol
Prevention of ulcers related to NSAID (taking nsaids for a long time)
Gastric Ulcer
pain 30-60 mins after meal. less pain at night. malnourished, weight loss. Hematemesis: vomiting blood (looks like coffee grounds).