Data revision notes Flashcards
Name the structures that pass through the femoral triangle
Femoral nerve
Femoral artery
Femoral vein
Lymphatics
What nerve innervates the medial compartment of the thigh?
Obturator
What nerve innervates the anterior compartment of the thigh?
Femoral
What nerve innervates the posterior compartment of the thigh?
Sciatic
What nerve innervates the lateral compartment of the leg?
Superficial branch of common fibular nerve
What nerve innervates the anterior compartment of the leg?
Deep branch of the common fibular nerve
Name 2 screening questionnaires that can be used for alcoholism
CAGE and AUDIT
What symptoms can occur 6-12 hours after alcohol withdrawal in an alcoholic?
Shaking, sweating, nausea, vomiting, headache, insomnia
What symptoms can occur 12-24 hours after alcohol withdrawal in an alcoholic?
Visual, auditory and tactile hallucinations (can usually be distinguished from reality)
What symptoms can occur 24-48 hours after alcohol withdrawal in an alcoholic?
Withdrawal seizures
What symptoms can occur 48-72 hours after alcohol withdrawal in an alcoholic?
Delirium tremens -> usually peak at 5 days. Patient suffers confusion, disorientation, hallucinations and seizures
What are the triad of symptoms in Wernicke’s encephalopathy?
Confusion, ataxia, ophthalmoplegia (paralysis of muscles surrounding eye)
Name some hand signs seen in patients with chronic liver disease
- Clubbing
- Terry’s nails (proximal 2/3 white, distal 1/3 red)
- Meuhrcke’s lines
- Palmar erythema
- Asterixis
- Dupuytren’s contracture
What is the most common cause of acute pancreatitis?
Gallstones
What does the mnemonic PANCREAS stand for in acute pancreatitis?
PaO2 Age Neutrophilia Calcium Renal - urea Enzymes Albumin Sugar
Name some drugs that can cause acute pancreatitis
Azothiaprine Thiazides Trimethoprim Tetracyclines Metronidazole
What is Grey Turner’s sign?
Bruising of the flanks - due to retroperitoneal haemorrhage. Causes = acute pancreatitis, pancreatic haemorrhage, ruptured aaa, ruptured ectopic
What is Cullen’s sign?
Umbilical bruising and superficial oedema. Causes = acute pancreatitis, blunt trauma, ruptured aaa, ruptured ectopic
What are 4 causes of large bowel obstruction?
1) Diverticulitis
2) Malignancy
3) Sigmoid volvulus
4) IBD -> UC, toxic megacolon
What are 3 causes of small bowel obstruction?
1) Adhesions
2) Hernias
3) Malignancy
How big do both small and large bowel have to be on AXR to be classed as dilated?
Small >3cm
Large >6cm
What is a Phlebolith?
A small calcification within a vein - common finding on AXR in the pelvis
What is an ileus?
An intestinal blockage caused by a lack of peristalsis. It can happen after surgery, due to electrolyte imbalance or acid-base abnormalities. Most resolve with ‘watchful waiting’
If both the small and large bowel are dilated, what does this suggest?
Ileocaecal incompetence
When might you see thumb printing on AXR?
In UC - caused by bowel wall thickening as a result of actor inflammation
If you see bilateral hilar lymphadenopathy and right paratracheal lymphadenopathy what should your differential include?
Sarcoidosis!
A double shadows over the right heart border on CXR suggests what?
A posterior mediastinal mass. CT needed to evaluate
What can air bronchograms signify on CXR?
Pulmonary consolidation, pulmonary oedema, interstitial lung disease, malignancy, pulmonary infarct, pulmonary haemorrhage.
If someone has fractured a long bone and then develops a petechial rash, neurological problems and respiratory problems, what might of happened?
Fat embolism
What malignancies can metastasise to bone?
Breast Bronchus Prostate Kidney Thyroid
Name 2 different types of fracture commonly seen in children
Greenstick
Buckle
What are the haematinics and where are they absorbed?
Iron - duodenum and jejunum
B12 - terminal ileum
Folate - SI
What is the best test for iron deficiency?
Serum ferritin
Describe the: 1) location of the apex, 2) first heart sound and 3) third heart sound in mitral regurgitation.
Apex - thrusting and displaced
First heart sound - soft
Third heart sound - present
Describe the: 1) location of the apex, 2) first heart sound and 3) third heart sound in mitral stenosis.
Apex - tapping, undisplaced
First sound - loud
Third sound - absent
Describe the: 1) pulse, 2) location of the apex, 3) systolic thrill, 4) Ejection systolic murmur and 5) BP pulse pressure in aortic stenosis.
Pulse - slow rising Apex - Undisplaced, heaving Systolic thrill - Present Ejection systolic murmur - harsh and loud Pulse pressure - narrow
Describe the: 1) pulse, 2) location of the apex, 3) systolic thrill, 4) Ejection systolic murmur and 5) BP pulse pressure in aortic regurgitation.
Pulse - collapsing Apex - 6th IC space, ant. axillary line, thrusting Systolic thrill - absent Ejection systolic murmur - softer Pulse pressure - wide
What criteria is used for helping confirm a diagnosis of infective endocarditis?
Duke’s
Name 5 examination findings you might see in a patient with infective endocarditis
Osler’s nodes - painful, raised red lesions on fingers or toes
Janeway lesions - non-tender flat red lesions on palms and soles
Splinter haemorrhages
Signs of emboli (peripheral or central)
Pyrexia
Petechial rash
Cotton wool spots
Before prescribing a statin what blood test must you do and and why?
LFTs as they are hepatotoxic. Must be checked as a baseline, at 3 months and then again at 1 year
What hormone is significantly raised in heart failure?
BNP - brain natriuretic peptide
What 2 drugs are the first line treatment for heart failure?
ACEI and B-blocker (maybe ARB and B blocker)
What electrolyte abnormalities can thiazide diuretics cause?
Hyponatraemia Hypokalaemia Hyperuricaemia (can cause gout) Hypercalcaemia Hyperglycaemia
What 2 blood tests can be done to check synthetic liver function?
- INR/PT
- Albumin -> hypoalbuminaemia is seen in chronic liver disease, it is this that results in ascites and peripheral oedema
List 3 abdominal signs of chronic liver disease
- Ascites
- Hepatomegaly
- Splenomegaly
- Caput medusae
Where in the GI tract does Crohn’s disease most typically affect?
Terminal ileum and ascending colon
What layers of the bowel does UC affect?
Just the bowel mucosa
What layers of the bowel does Crohn’s affect?
All layers - it is transmural which can lead to fistulas.
Give 4 extra intestinal manifestations of IBD
- Mouth ulcers (aphthous)
- Skin - erythema nodosum, pyoderma gangrenosum
- Eyes - conjunctivitis, uveitis
- Joints - acute arthritis
- Finger clubbing
Give 6 contraindications to the OCP
- History of DVT/PE
- Breast cancer
- Currently breastfeeding
- Previous stroke
- Migraine with aura
- Liver disease
- IHD
Name a drug that is used to treat infertility in women
Clomifene
Give some signs and symptoms of hyponatraemia
Anorexia Malaise Nausea and vomiting Muscle cramps Confusion, seizures Coma
What does it suggest about the cause of hyponatraemia if urinary sodium is high? Give some examples of causes
That sodium and water are being lost from the kidneys.
- Diuretic overuse
- Renal failure
- Addison’s disease
- Osmotic diuresis
Give some non-renal causes of hyponatraemia
- D+V
- Burns
- Small bowel obstruction
- Heat exposure
- Iatrogenic
Why must you not correct hyponatraemia too quickly?
Can cause cerebral oedema and central pontine myelinolysis
How do you manage hyponatraemia?
IV 0.9% saline, gradually. Furosemide if v. severe to reduce risk of heart failure
Give some signs and symptoms of hypernatraemia
- Thirst
- Lethargy
- Irritability
- Weakness
- Confusion
- Reduced consciousness, seizures, coma
Give 4 potential causes of hypernatraemia
- D+V
- Burns
- Osmotic diuresis (hyperosmolar hyperglycaemia state)
- Diabetes insipidus
How do you manage a patient with hypernatraemia due to diabetes insidious?
Desmopressin