General revision - everything Flashcards
Which compound is released from damaged vessel walls and initiates the coagulation cascade?
Tissue factor
What drug class are used to manage the somatic symptoms of anxiety? Eg sweating, palpitations & hand tremors.
Name a contraindication to this drug class.
Beta blockers
Asthma & heart block
What is eclampsia?
Seizures that occur as a result of pre-eclampsia
Ferroportin is vital for what?
What compound blocks the action of ferroportin & what is the consequence of this?
Which organ produces this compound and in response to what 2 things?
Ferroportin is vital for iron absorption from gut & iron storage in cells, mainly liver
Hepcidin blocks ferroportin preventing further iron absorption
Liver produces hepcidin in response to:
1) high iron stores (when they are full and the body doesn’t need any more iron)
2) inflammation
State the 5 criteria of the Bishops Score:
~ state the characteristics seen in each criteria that indicate onset of labour
What is the Bishops Score used for?
→ Position of the cervix (anterior)
→ Effacement of the cervix (length - shorter = better)
→ Consistency of the cervix (soft)
→ Dilatation of the cervix (bigger = better)
→ Station of the presenting part (distance in cm in relation to the ischial spines)
Bishops score is used to assess whether induction of labour would be successful
What examination findings would be seen in a neck of femur #? (5)
Affected leg is shorter
Affected leg is externally rotated
Palpation of hip is painful
Patient cannot perform a straight leg raise
Bruising/soft tissue swelling in/around the hip area
Which electrolyte abnormality can blood transfusions cause?
Why does this happen?
Hypocalcaemia
When blood is donated, it’s mixed with sodium citrate to prevent it from coagulating. → The citrate in the blood can bind to the patient’s circulating calcium resulting in a decreased amount of free calcium = symptoms of hypocalcaemia
What is the definition of sepsis?
Life threatening organ dysfunction caused by a dysregulated host response to an infection
What are the common symptoms of a migraine? (5)
Unilateral, throbbing headache that’s aggravated by movement
Photophobia (light makes it worse)
Phonophobia (loud noises make it worse)
Nausea / vomiting
+/- Aura
Name 2 serious complications with the use of MAOI’s:
What are MAOIs mainly used to treat?
Hypertensive crisis (cheese reaction) Serotonin syndrome
Depression
What is the physiological cause of the menopause?
Ovarian failure* which results in oestrogen deficiency
* Decreased ovarian function due to very few follicles remaining
What are the 2 1st line investigations of prostate cancer?
What blood test can also be requested?
What imaging is best initially?
Digital rectal examination to examine the prostate
Urine dip
Prostate specific antigen (PSA)
MRI
If a patient presents with “the worst headache they’ve ever had”, what diagnosis is this suggestive of?
Subarachnoid haemorrhage
Commonly presents with a thunderclap headache
What is the function of the trigeminal nerve?
Motor function to muscles of mastication
Sensation of face
List some common symptoms/signs seen in pericarditis: (5)
Chest pain (pleuritic)
→ Worse when lying down / deep breaths
→ Better sitting forwards
Fever
Pericardial rub
Raised troponin
ECG changes: widespread, saddleshaped ST elevation
What type of dementia is characterised by a step wise decline?
Vascular dementia
Describe what nociceptive pain is:
Describe what neuropathic pain is:
Note whether they have a protective function or not.
Nociceptive pain = pain when there is tissue injury or illness (eg when you cut yourself)
~ has a protective function (the pain causes you to stop whatever is causing the pain)
Neuropathic pain = pain caused by nervous system damage / abnormality
~ no protective function, often occurs long after there has been trauma!
Which antidepressant class should be avoided in patients with suicidal ideation?
Tricyclic antidepressants - they are lethal in overdose
What is the function of the trochlear nerve?
Which muscle does it innervate?
Eye movement
Superior oblique muscle
What is the 1st line investigation in SUFE?
What is the management of SUFE?
Xray of hip
Surgery: correction of femoral head positon PLUS screw fixation
~ Prophylactic fixation of contralateral hip may be done
What is the typical presentation of someone with an extradural haemorrhage? (symptoms)
Head trauma +/- unconsciousness followed by lucid period (as the blood is pooling)
Progressive headache
Nausea / vomiting
Decreasing GCS
What xray findings are seen in heart failure? (ABCDEF)
A: alveolar oedema
B: Kerley B lines (caused by interstitial oedema)
C: Cardiomegaly
D: Upper lobe diversion (increased blood through the smaller blood vessels in the upper lobes - looks like cloudiness on xray)
E: Pleural Effusions
F: Fluid in the horizontal fissure
Give an example of a commonly used tricyclic antidepressant.
Amitriptyline
Which neurotransmitter do antipsychotics decrease?
Dopamine









