Chapter 46 Upper Gastrointestinal Problems Part 1 Flashcards
(477 cards)
What are the common upper gastrointestinal (GI) problems reviewed in this chapter?
- Nausea and vomiting
- Oral and gastric cancers
- Gastrosophageal reflux
- Ulcerative disease
- Inflammatory and infectious bowel disorders
- GI bleeding
- Structural problems
These conditions impact patient care during upper GI surgery.
What may patients with impaired GI function experience?
- Malnutrition from decreased intake
- Altered fluid balance
- Altered electrolyte balance
- Altered acid-base balance
These issues arise from difficulties in eating, drinking, or talking.
How can pain affect patients with upper GI issues?
- Disrupt sleep
- Cause fatigue
Pain may also impair communication abilities.
What is the risk associated with problems swallowing in patients?
Increased risk for aspiration
Aspiration can lead to serious complications, including pneumonia.
What are the most common manifestations of GI disease?
Nausea and vomiting
These symptoms can indicate a variety of underlying GI issues.
What is nausea?
A feeling of discomfort in the epigastrium with a conscious desire to vomit.
What is vomiting?
The forceful ejection of partially digested food and secretions from the upper GI tract.
Name some conditions unrelated to GI disease that can cause nausea and vomiting.
- Pregnancy
- Infection
- Central nervous system problems (e.g., meningitis, tumor)
- Cardiovascular disease (e.g., myocardial infarction, heart failure)
- Psychological states (e.g., stress, fear)
True or False: Women are less likely to experience nausea and vomiting associated with anesthesia and motion sickness.
False
What coordinates the multiple components involved in vomiting?
A vomiting center in the medulla.
What types of receptors relay information to the vomiting center?
Receptors for afferent fibers found in the GI tract, kidneys, heart, and uterus.
List the structures involved in the act of vomiting.
- Closure of the glottis
- Deep inspiration with contraction of the diaphragm
- Closure of the pylorus
- Relaxation of the stomach and lower esophageal sphincter
- Contraction of abdominal muscles
What is the chemoreceptor trigger zone (CTZ)?
A zone in the brainstem that responds to chemical stimuli from drugs, toxins, and labyrinthine stimulation.
What is the result of sympathetic activation during vomiting?
- Tachycardia
- Tachypnea
- Diaphoresis
What occurs during parasympathetic stimulation related to vomiting?
- Relaxation of the lower esophageal sphincter
- Increased gastric motility
- Increased saliva
What is anorexia?
Lack of appetite.
What complications can arise from prolonged nausea and vomiting?
- Dehydration
- Electrolyte imbalances
- Circulatory failure
What metabolic condition can result from loss of gastric hydrochloric acid?
Metabolic alkalosis.
Fill in the blank: The main goals of care in managing nausea and vomiting are to determine and treat the underlying cause, recognize and correct any complications, and provide _______.
[symptomatic relief]
What is the risk associated with the parenteral route of Promethazine?
Severe tissue injury.
What are 5-HT3 receptor antagonists effective for?
- Chemotherapy-induced vomiting (CINV)
- Postoperative nausea and vomiting (PONV)
- Nausea and vomiting related to migraine headache and anxiety
What is a potential risk of chronic use or high doses of Metoclopramide (Reglan)?
Tardive dyskinesia.
What characterizes tardive dyskinesia?
Involuntary and repetitive movements of the body (e.g., extremity movements, lip smacking).
What is the mechanism of action of scopolamine transdermal?
Block cholinergic pathways to vomiting center
Commonly used to prevent nausea and vomiting.