02. AKT Insights: Format and MCQs Flashcards
(198 cards)
Differential for recurrent tight-squeezing headaches?
- Medication overuse headache
- Tension type headache
- Migraine without aura
- Chronic bilateral rhinosinusitis
- Venous sinus thrombosis
- Intracranial hypertension OR hydrocephalus
Describe a tension-type headache
- Lasts from 30 minutes to 7 days
- Usually bilateral
- Feels like pressure or tightness in head
Characteristic of increased cerebrospinal fluid pressure headache?
- Typically worse in the morning and when laying down
- Improved by upright posture
- Aggravated by cough, straining and Valsalva manouvre
- May be associated with transient visual obscuration, pulsatile tinnitus and papilloedema
- Exclude a space-occupying lesion, venous sinus thrombosis or obstruction and use of drugs e.g. tetracyclines and Vitamin A analogues (e.g. isotretinoin, acitretin)
- Consider idiopathic intracranial hypertension
Risk factors for medication overuse headache?
- Medication overuse can cause a rebound headache as the dose wears off
- Opioid analgesics (including codeine), triptans and ergots (i.e. ergotamine, dihydroergotamine) are more potent than non-opioid analgesics in inducing medication overuse headache
Management of medication overuse headache?
Cease offending medication
Bridging therapy:
* First-line: Naproxen MR 750mg daily PO for 5 days in first week, then 3-4 days per week for 2 weeks then stop OR
* Second-line: Prednisone 50mg daily PO for 3 days, then decrease gradually over 7-10 days, then stop\
Preventative therapy:
* Amitriptyline 10mg nocte PO - if effective, continue for 6 months and then trial withdrawing from therapy
Management of pityriasis versicolour?
Options:
* Econazole (Pevaryl) 1% nocte TOP for 3 nights
* Ketoconazole (Nizoral) 2% shampoo daily TOP for 5 days
* Selenium sulfide (Selsun) 2.5% shampoo daily TOP for 7-10 days
What is pityriasis versicolour?
Common yeast skin infection
Causes flaky discoloured patches on the chest and back, arms
Pale patches may be more common in darker skin (pityriasis versicolour alba)
Risk factors: hot, humid climates; sweaty
Diagnosed clinically and on wood lamp (black light) exam -> yellow-green fluorescence
What factors would you assess for to estimate severity in a respiratory presentation/croup for a child?
- Decreased level of consciousness
- Stridor at rest
- Tachypnoea
- Moderate use of accessory muscles of respiration
What are the indicators of severe croup?
- Increased agitation/drowsiness
- Persistent stridor at rest
- Marked increase or decrease in respiratory rate
- Marked chest wall retraction
Management of mild croup?
- Prednisolone 15mg STAT PO
- Advise to attend Emergency Department if he develops stridor ar rest/increased work of breathing
Management of severe croup?
Pharmacological:
* Adrenaline 0.1% 5mL via nebuliser as a single dose (adrenaline 1:1000 solution 0.5mL/kg, max 5mL (5mg))
* Dexamethasone 9mg STAT PO/IM
Non-pharmacological:
* Arrange urgent hospital transfer via ambulance
* Allow patient to sit in a comfortable position
* Minimise handling
* Keep patient with parent/carer to reduce stress
* Update parent on management plan
Management steps for dealing with a patient who is upset? (e.g. context of croup)
- Empathetically listen to concerns
- Explain the nature of the illness and how severity can change
- Discuss the case with medical defence organisation
- Offer to discuss the complaint with the practice manager
- Apologise for the unexpected outcome
- Carefully document the complaint and the discussion in the patient file
What are the management options for a suspected squamous cell carcinoma?
- Excisional biopsy with 3-5mm margins
- Curettage with cautery OR electrodessication with 1-2mm margin with curative intent
- Punch biopsy to establish diagnosis OR incision biopsy to establish diagnosis
Which one goes faster: Squamous cell carcinoma or basal cell carcinoma?
Squamous cell carcinoma grows rapidly faster
When is postoperative adjuvant radiotherapy recommended after excision of squamous cell carcinoma (ie high risk of metastasis)?
- Margins are positive (ie. incomplete excision)
- Histopathology shows poor differentiation or other high risk histological subtypes, or perineural or lymphovascular invasion
- Depth of tumour invasion is greater than 4mm
- Tumour is more than two centimetres in diameter
- The SCC is recurrent
- The SCC is in a high risk site (e.g. head and neck, especially lip and ear, genitalia)
What risks would you discuss in the consenting process for a skin lesion biopsy?
- Risk of bleeding
- Risk of infection
- Risk of prolonged healing time or wound breakdown
- Risk of postprocedural pain
- Risk of scarring
- Risk of requiring repeat procedure if inadequate margins
- Risk of recurrence of the lesion
- Risk of damage to surrounding structures of biopsy site / skin numbness / nerve damage / reaction to anaesthetic
When should oral antihyperglycaemic medications, except SGLT2i and injectable GLP1 RAs, be withheld for a procedure?
On the morning of procedure
When should SGLT2i be withheld for a surgery?
3 days prior to surgery
When should SGLT2i be withheld for a larger procedure e.g. endoscopy/colonoscopy?
2 days prior
When should SGLT2i be withheld for a day procedure e.g. gastroscopy?
Morning of the procedure
When should apixaban/anticoagulant be withheld for a surgery?
48-72 hours prior
Do DOACs need to be withheld for procedures with minimal risk of bleeding (eg minor dental extractions, skin excisions of less than one cm, cataract procedures)?
No, interruption of DOAC therapy is usually not needed
Which procedures count is high bleeding risk when assessing the need to withhold DOAC therapy?
- Any surgery or procedure with neuraxial anaesthesia (spinal or epidural)
- Neurosurgery (intracranial or spinal)
- Cardiac surgery (eg CABG, heart valve replacement)
- Major vascular surgery (eg aortic aneurysm repair, a auto femoral bypass)
- Major orthopaedic surgery (eg hip/knee joint replacement surgery)
- Lung section
- Urological surgery
- Extensive cancer surgery
- Intestinal anastamosis surgery
- Reconstructive plastic surgery
Management options for palmoplantar hyperhidrosis?
First line:
* Aluminium dichlorohydrate 20% OR aluminium chloride 15% antiperspirant
* Iontophoresis - introduction of ionised substances through intact skin by the application of direct current
Second line:
* Oxybutynin - use for generalised hyperhidrosis, can be used if vocal treatments fail
* Propantheline - use for generalised hyperhidrosis, can be used if vocal treatments fail
* Glycopyrrolate - usually via dermatologist, can be topical or in iontophoresis
* Botulinum toxin injection - expensive and painful
* Surgical sympathectomy - last resort, high risk of recurrence an compensatory sweating in previously unaffected areas