Internal Med Flashcards
Features of Mitral Stenosis
Mid-diastolic murmur that doesn’t radiate towards the axilla
Opening snap is heard
The 1st heart sound is very loud
Features of Mitral Regurgitation
Mid-systolic murmur that radiates towards the axilla
It is best heard over the apex
Intensity increases with the Valsalva maneuverer
Features of atrial myxoma
- the most common form of primary cardiac tumors
- it can be diagnosed with echocardiography
- it can mimic mitral stenosis during physical examination
Mechanism of action of Digoxin
It reversibly inhibits the Na-K ATPase enzyme. The inhibition of the sodium pump by digoxin increases intracellular sodium and increases the calcium level in the myocardial cells, causing an increased contractile force of the heart
Crescendo angina
This is another name for unstable angina
Ideal target of LDL cholesterol in a diabetic after an MI
< 1,8 mmol/l
Percutaneous coronary intervention
PCIs may dilate the stenosis with drug-eluting balloon (DEB) dilation, and
then insert a stent.
Thrombolysis
Done in the acute setting if PCI center is > 120 minutes away. Actilyse
is the agent used.
Austin-Flint murmur
low-pitched rumbling heart murmur which is best heard at the cardiac apex. It is associated with severe aortic regurgitation
Wide QRS complexes are seen in
A) ventricular tachycardia
B) supraventricular tachycardia with bundle branch block
C) antidromic atrioventricular reentry tachycardia (WPW-syndrome)
D) atrial flutter with bundle branch block
What diseases cause systolic hypertension?
1) aortic insufficiency
2) thyreotoxicosis
3) beriberi
4) atherosclerosis
Glycogenosis
This is a group of genetic disorders that cause the abnormal use and storage of glycogen in the body’s tissues
Dressler’s syndrome
Dressler’s syndrome is believed to be an immune system response after damage to heart tissue or to the pericardium, from events such as a heart attack, surgery or traumatic injury
Characteristics of mitral valve prolapse
1) it can cause ventricular extrasystoles
2) it can present with chest pain
3) it is common in Marfan’s sydrome
Proarrhythmia
Proarrhythmia is a new or more frequent occurrence of pre-existing arrhythmias, paradoxically precipitated by antiarrhythmic therapy
When do the levels of creatine kinase increase after an AMI?
The level of CK starts to elevate 3 hours after the myocardial infarction
Action of Beta Blockers
β-Blockers decrease myocardial oxygen demand by reducing heart rate and contractility. They increase oxygen supply by increasing diastolic time and reducing ventricular wall stress, especially in patients with left ventricular hypertrophy.
Types of CCB
- dihydropyridines–> amlodipine, nifedipine
2. Non-dihydropyridines–> diltiazem, verapamil
Thallium perfusion scintigraphy
A thallium (or cardiolite) scan uses a radioactive tracer to see how much blood is reaching different parts of your heart
Is there an apical pulse in cardiac tamponade?
NO!!! The apical pulse disappears
Complications of aortic dissection
A) STE-ACS
B) cardiac tamponade
C) aortic valve insufficiency
D) aortic rupture
Indications for pacemaker implantation
A) third-degree atrioventricular block
B) bradyarrhythmia
C) carotis sinus hyperaesthesia
Where do you positioning the ICD electrode?
The right ventricle
Causes of ascending aorta dilation
A) hypertension
B) chronic aortic valve insufficiency–> due to high volume oscillation
C) Marfan-syndrome
Warning signs of GERD
Weight loss, Anemia, Dysphagia
Domperidone
This is a medication used as an antiemetic, gastric prokinetic agent, and galactagogue
What can glucagon do at pharmacological doses?
At pharmacological doses, it relaxes the esophageal smooth muscle and the lower esophageal sphincter, promoting the spontaneous passage of an impacted food bolus
When is the most gastric acid produced?
This is in the gastric phase of digestion
Phases of food digestion
- Cephalic phase–> phase of gastric secretion is triggered by stimulation of the taste receptors in the mouth
- Gastric phase–> More than half of the daily amount of gastric fluids are produced after a meal
- Intestinal phase –> stage in which the duodenum responds to arriving chyme and moderates gastric activity through hormones and nervous reflexes
What increases the risk of developing gastric cancer
A) anemia perniciosa
B) adenomatous polyp in the stomach
C) previous gastric surgery for ulcer
Ménétrier disease
This is a gastrointestinal condition characterized by overgrowth of the mucous cells (foveola) in the mucous membrane lining the stomach, causing enlarged gastric folds.
Stimulants that increase pepsinogen secretion
The most potent stimulus for pepsinogen release is vagal stimulation. Histamine primarily stimulates hydrochloric acid secretion but also significantly enhances pepsinogen secretion. Gastrin also enhances the secretion of pepsinogen
What is the most common gastric polyp?
Hyperplastic polyp
Characteristics of NSAID ulcers
- Relatively asymptomatic appearance, often without any complaints (silent ulcers)
- mild dyspepsic complaints
- NSAID ulcers usually appear when complications occur (bleeding and perforation).
- Typically seen in the stomach
What is the most common location for the gastrinoma ?
30-60% of gastrinomas are located in the pancreas.
Diagnosis of the Zollinger Ellison Syndrome
This is done via the secretin provocation test. This will cause an increase in the gastrin levels
Diagnostic methods of GERD
1) proton pump inhibitor test
2) esophageal impedance test
3) 24-hour oesophageal pH monitoring
Duodenal ulcer
This will typically cause pain upon fasting & can lead to pyloric stenosis
The effects of proton pump inhibitors
1) Proton pump inhibitors act on the H + / K + -ATPase pump.
2) PPIs significantly increase serum gastrin levels–> due to the feedback of the gastric acid inhibition
3) They are among the basic drugs for Helicobacter pylori eradication schemes.
What enhances the gastric secretion?
1) gastrin
2) caffeine
3) histamine
Treatment options for achalasia
A) diltiazem
B) pneumatic dilatation
C) nitroglycerin
D) cardiomyotomy
Where is most of the iron absorbed in the small intestine?
Proximal aspect
Where is most of the Vit B12 absorbed in the small intestine?
Distal aspect
In which section of the gastrointestinal tract are saturated bile acids absorbed?
Distal small intestine
Does dopamine cause constipation?
Yes!
Causes of constipation
A) tricyclic antidepressants
B) SSRI type antidepressants
C) persistent hypokalaemia
anti-endomysium antibody
This is found in about 90% of ppl with celiac disease
Dumping syndrome
This is characterized as after Billrot II. surgery, the function of regulating gastric emptying as a modifying factor is missing during eating. When patients consume a larger amount of sweets, glucose is essentially delivered directly to the intestine, which initiates insulin secretion. Relative hyperinsulinemia and low blood glucose (hypoglycaemic episodes) develop temporarily - approximately 90 to 120 minutes afterwards. Clinical symptoms include: weakness, paleness, dizziness, sweating, tachycardia.
cryptogen cirrhosis
This is now known as the NASH–> nonalcoholic steatohepatitis
What can trigger hepatic encephalopathy in severe liver cirrhosis?
A) gastrointestinal bleeding
B) aggressive diuretic therapy
C) enteral infection
D) high amount of oral protein intake
Benign postoperative cholestasis syndrome
This is a syndrome occurring during the postoperative days following a protracted cardiac surgery is primarily due to hypoxia and hypothermia. There may also be association with medications given pre- or post-operatively
Why is TIPs contraindicated in variceal bleeding?
Portocaval shunt increases the risk of hepatic encephalopathy
Peliosis hepatis
This is an uncommon vascular condition characterized by multiple, randomly distributed, blood-filled cavities throughout the liver. It is associated with OCP use
Klatskin tumor
Klatskin tumors are the most common type of cholangiocarcinoma that begins in an area called the hilum, where the left and right bile ducts join and leave the liver.
Symptoms:
Jaundice, Itching, Light colored stools and/or dark urine, Abdominal pain, Loss of appetite / weight loss, Fever, Nausea / vomiting