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compare the following anasthetic agents:
Propofol
Fentanyl
Suxamethonium
Ketamine
Rocuronium
Midazolam
Suxamethonium - increase potassium
- rapid onset of action
Rocuronium - rapid onset
Ketamine -not cause hypotension
Midazolam - minor sedation
Compare the following causes of hypoglycemia:
Dumping syndrome
Factiitous hypoglycemia
Intermittent fasting
Impaired insulin sensitivity
Insulinoma
wolff- parkinson0white syndrome
accessory pathway from atrium to ventricle bypassing the normal AV node
Short PR interval and pre-excitation/delta wave (more prominent in v1-v6)
- catheter ablation
BPH
CI for phosphodiesterase inhibitors
Patients taking nitrates- due to risk of hypotension
Orf
contagious ecythyma / contagious pustular dermatitis
Presentation: solitary lesion on the hands or fingers that progresses through 6 stages: maculopapular, target, acute weeping, nodular, papillomatous, finally regressive as it crusts and resolves
Self limiting and resolves within 3-6 weeks
how is schistosomiasis transmitted
fresh water containing infected snails
mode of transmission for leishmaniasis
sanfly bites
Dogs and rodents are reservoir hosts
anticoags for stroke
If a TIA, start anticoag urgently. If moderate stroke: 5-7 days after. If severe stroke: 10-14 days after.
In a stroke without identifiable cause: DAPT with aspirin and clopidogrel . Then only one for lifelong
If stroke due to AF: Aspirin for 7 days then DOAC lifelong
CRC guidelines and risk stratification and screening
Category 1 - similar risk as the general population
Asymptomatic people with no family history of colorectal cancer OR
One 1st-degree relative with CRC ≥60 years
Screening: FOBT should be completed every 2 years from 45 years old as per usual screening protocol. Colonoscopy is generally not recommended.
Category 2 - moderately increased risk
Asymptomatic people with one 1st-degree relative CRC diagnosed <60 years OR
Two 1st-degree relatives with CRC at any age or one 1st-degree and one or more 2nd-degree relatives diagnosed at any age
Screening: Colonoscopy should be offered 5 yearly starting at 10 years younger than the earliest diagnosis of CRC in a 1st-degree relative, or age 50 (whichever is earliest).
Category 3 - high risk, without known hereditary cancer syndrome
Asymptomatic with two 1st-degree and one 2nd-degree relative with colorectal cancer, with at least one diagnosed before 50 years old OR
Two 1st-degree relatives and two or more 2nd-degree relatives diagnosed with CRC at any age OR
Three or more 1st-degree relatives with CRC at any age.
Screening: refer to the familial cancer clinic for genetic assessment before a screening decision is made if Lynch syndrome has not been excluded. If Lynch syndrome is excluded, colonoscopy should be offered every 5 years starting at 10 years younger than the earliest age of diagnosis of colorectal cancer in a first-degree relative or age 40 years (whichever is earliest)
tx pertussis
5d azithromycin
chagas disease
Trypanosoma cruzi- live in cracks and crevices of poorly constructed homes particularly those with mud walls, thatched roofs or adobe structures
Endemic to south america, now seen in australia
acute tubulointerstitial nephritis
type 4 HSN triggered by penicillins, NSAIDS, cephalosporins, sulfonamides within days to weeks of starting them
Can be asx. Sympt: fever, maculopapular rash, flank pain, arthralgia
Increased serum creatinnine
U/A- microscopic hematuria, pyuria, eosinophiluria, WBC casts
Associations - pyelonephritis
positive leukocyte esterase and bacteria on u/a. +/- nitrates
when to specialist referal for lumbar disc herniation
- no improvement of symptoms after conservative management
- immediately if the patient shows high steppage gait
- image findings of disc prolapse
diagnostic features of pre-eclampsia
hypereflexia
elevated BP
hyperreflexia
clonus
abnormal liver function tests
significant proteinuria
mng of pre-eclampsi
IV magnesium sulphate
4g loading dose followed by 1g per hour maintenance
Fluid balance monitoring and restriction to 80-100ml/hr as these pts are at risk of pulmonary edema
treatment for uncomplicated gonhorrea
stat IM ceftriaxone + PO azithromycin
tx for gonhorrea and chlamydia
gonhorrea- stat IM ceftriaxone + PO azithromyocin
Chalmydia - PO doxycycline
salmonella exclusion criteria for food workers
exlcuded from work until 48 hours after symptoms resolve
how is hepatitis A transmitted
fecal oral - sexual, consumption of contaminated food/water in travellers
CEA ca?
CRC
management of hepatitis A
supportive
contact tracing and post exposure prophylaxis to contacts- may be vaccination or Ig within 2 weeks
Abstain from sexual contact , not prepare food or drinks for others
AFP ca ?
HCC