Julia GP Collated Flashcards
What is Trichomonas Vaginalis?
T vaginalis infection is the most common nonviral STD in the world.
Many patients (20-50%) are asymptomatic.
If discharge is present, it is usually copious and frothy and can be white, gray, yellow, or green (the yellow and green colors are due to the presence of white blood cells [WBCs]). Local pain and irritation are common.
What are the risk factors of OP?
Epidemiological / Anthrolpological Risk Factors
- Female
- Older age
- Early-onset menopause / menopause
- Low BMI
- Immobilisation
Lifestyle Risk Factors
- ETOH
- Smoking
- Low calcium intake
- Low vitamin D intake
- Inadequate sun exposure
Medications / Disease Processes Risk Factors
- Steroids
- Anti-convulsants
- HRT (protective)
-
Endocrine disorders:
*Cushings
*HyperPTH
*Hyperthyroidism -
Other disorders:
*CKD
*CLD
*MM
*Hysterectomy
What is a T score?
What is a Z score?
Which is used for the diagnosis of OP?
What is the other used for?
A T score is the number of standard deviations from the BMD of a young healthy adult (30 y.o.)
A Z score is the number of SDs you are from the BMD of someone your age and sex.
A T score is used in the diagonsis of osteopenia / osteoporosis
How do you diagnose OP and osteopenia?
DEXA scan
T score between -1 and -2.5 = osteopenia
Z score less than -2.5 = OP
what might artefactually increased BMD on a DEXA scan?
OA
Fracture
Deformity
What are the differential diagnoses of pathalogical fractures?
‘MR PPP MMM’
Malacia (Adults) / Rickets (Paeds) - vitamin D not mineralizing bone
Porosis / Penia - osteoclastic reabsorption of bony architecture
Pagets - abnormal osteoclasts, intense resorption of bone
Parathyroidism - primary, secondary
Malignant invasion - (think of hexagon: thyroid, breast, lung, kidneys, prostate)
MGUS / MM
Medication - steroids, anti-convulsants
What investigations would you order for someone with a pathological fracture?
Labratory Tests
- Serum Vit D
- CMP
- UEC
- LFT
- PTH
- TFT
- Urinary cortisol (if cushings suggestive on history)
- urine / serum proetin electrophoresis (if MGUS / MM suggestive on history)
Imaging
- xray of painful site
- DEXA scan
Describe your management of OP (which has been diagnosed on DEXA and without any pathalogical fracture)
Basics
Place & Person
Ix and Confirm Diagnosis
FRAX Risk Ax Tool - gives a 10 year probabilty of major osteoporotic fracture
Definitive Management
- Lifestyle / Non-Pharmacological
- cessation of ETOH
- cessation of smoking
- weight bearing activitiy
- dietary chanages - calcium and vitmamin D
- Pharmacologial
- Bisphosphonates
- Raloxifene
- Antibody - denosumab
- Calcium & Vitamin D
- Endocrine (HRT, PTH)
- Strontium ranelate
Referral
- Physiotherapy - falls and balance classes
- OT - gait aids
- repeat DEXA every 2 years?
What is the mechanism of action of bisphosphonates?
What routes are they given in?
what are the AE of bisphosphonates?
What should you tell the patient?
Bisphosphonates inhibit osteoclastic activity.
They can be given as a weekly tablet or yearly IV (Zoledronic acid).
The AE of bisphosphonates are oesophagitis are:
- oesophagitis / gastritis
- osteonecrosis of the jaw (also for denosumab)
- atypical fractures of the femoral neck
You should tell the patient
- If taking oral - have the tablet once / week in the morning whilst sitting up, and don’t eat / drink or lie down for at least 30 minutes afterward
- If taking either oral or IV, visit your dentist prior to commencement and have done any major dental work which needs doing
- Ensure you are well hydrated prior to IV infusion, you will require some testing (of Ca, Vit D, eGFR)
when are bisphosphonates contraindicated? what is second line?
poor renal function
if this is the case –> denosumab
how is densoumab administered and what is its side effects?
6 monthly SC injection
Osteonecrosis of the Jaw
Atypical fractures
in whom may raloxifene be used when treating OP?
what is it’s MOA?
what is it’s AE?
women, usually younger post-menopausal women with spinal OP, especially in those with a high breast-Ca risk.
it is a SERM.
It has the same AE as other HRT, but it REDUCES the risk of breast cancer. It also can exacerbate vasomotor symptoms. It has been shown to increase spinal BMD but not femoral neck or elsewhere.
what is the MOA of teraperatide and who can prescribe it?
a PTH analogue
when given in a pulsatile fashion (daily SC injections) it increases BMD
it can only be prescribed by a specialist
it only increases vertebral BMD, not femoral
what is the mechanism of action of strontium ranelate?
Strontium, which has the atomic symbol Sr and the atomic number 38, belongs to the group II in the periodic table of the elements, just beneath calcium. Because its nucleus is very nearly the same size as that of calcium, the body easily takes up strontium and incorporates it into bones and tooth enamel in the place of calcium
which STI is usually asymptomatic?
chlamydia
If a male has uretheral disachrge, what should you test for?
Gohonorrhea
Chlamydia (even though usually symptomatic, is more common than gonorrhea)
how often should one be screened for chlamydia?
yearly from aged 15-30 if they are sexually active
how does chlamydia normally present?
normally asymptomatic
discharge from penis / vagina
pain during urination
pain during sex
What are the complications of chlamydia in men and women?
Men
- Epididymitis & Epidydimo-Orchitis; which can lead to
- Infertility
- Reactive Arthritis (more common in men)
Women
- Pelvic inflammatory disease; which can lead to
- Infertility
- Ectopic pregnancy
- Persistent pelvic pain
Which STI can cause a reactive arthritis and in which sex?
chlamydia
reactive arthritis caused by chlamydia is more common in men than in women
What is the management of chlamydia?
Basics
Place & Person
Investigate & Confirm Diagnosis
- NAAT: specimen collected by -
- first pass urine
- endocervical swab
- cultured urethral discharge (if present)
Definitive Management
- 1g azithromycin po as a single dose
- Abstain from unprotected sexual intercourse for at least 7 days during and after treatment
- A notifiable disease - must notify DHS within 5 days of diagnosis
Follow-Up
- Contact tracing - advise to dicuss with sexual partners so they can be screened
- Re-test for chlamydia 3-4 months post treatment
how do you investigate for chlamydia?
NAAT
Method of collection:
- first pass urine
- endocervical swab
- urethral discharge (if present)
what is the typical presentation of gohnorrhea in men?
and in women?
Man with copious urethral discharge 2-10 days after unprotected sex (although chlamydia is still more common than gonorrhea, so still more likely to be chlamydia).
Women are usually asymptomatic or present with vague symptoms mimicking a UTI.
What is required to investigate for gonorrhea?
NAAT. Specimen collected by
- Urine (mid stream)
- Endocervical swab
- Rectal swab
- Throat swab
- Culture of discharge
Also investigate for chlamydia if you suspect gonorrhea!
what is the definitive management of chlamydia?
what is the definitive management of gonorrhea?
how are these managements potentially related?
Chlamydia = 1g azithromycin po, single dose
Gonorrhea = Ceftriaxone 250mg IM, single dose
If you are treating for gonorrhea, but you haven’t ruled out chlamydia - treat for chlamydia as well
What is the management of gonorrhea?
Investigate and Confirm Diagnosis
- NAAT, collected by:
- MSU
- Rectal swab
- Pharyngeal swab
- Endocervical swab
- Cultured discharge (if present)
Definitive Management
- IM 250mg ceftriaxone
- Advise to abstain for sex for 7 days?
Follow Up
- Notifiable disease - notify DHS within 5 days
- Contact tracing - treat sexual partners empirically
- Offer eductaion RE safe sexual practises
- Re-investiage 3-4 months after treatment, to ensure complete treatment
- ALSO TEST / TREAT CHLAMYDIA
Which STI is described as “the great imitator”?
Syphillus
What is the name of the microorganism which causes syphillus?
Treponema pallidum
How does primary syphillus present?
A single painless ulcer in the genital area (chancre)
What is the pathophysiological progression of syphillus?
Remember Syphillus happens in Stages
- Primary = Chancre
- Secondary = Secondary erruption on skin and mucous membranes (rash) +/- systemic symptoms
- Then long periods of latency
- Teritiary (10-30 years after infection) = late lesions of skin, bone, viscera, cardiovascular and central nervous systems (this is why it’s called the great mimcker)
How do you investigate for syphillus?
Syphillis EIA (blood test)
what is the definitife management of syphilllis?
early (
late (>2 years or unknown) = IM benzthine penicillin, weekly for 3 weeks
tertiatry syphillis (>2 years and with skin, bone, CVS or neurological involement) = IV benzylpenicillin
What is the overall management of syphillis?
Investigate and Confirm Diagnosis
- Seroloigcal test - Syphillis EIA
Definitive Management
- Early - IM benzathine penicillin, once off
- Late or unknown - IM benzathine penicillin, once per week for 3 weeks
- Tertiary - IV benzylpenicillin for 15 days
- Abstain from sex until completion of treatment
Follow-Up / Other
- Test for other STIs
- Notifiable disease - contact DHS
- Contact tracing
- Retest 3-4 months after completion of treatment
what is a common presentation of bacteral vaginosis?
asymptomatic
fishy-smelling vaginal discharge
dysuria
vaginal pruritis
pyspareunia
how do you diagnose bacterial vaginosis?
- Clincially
- presence of mucous dishachrge
- fishy smell
- clue cells on micrscopy (culture not required)
- Vaginal pH >4.5
What is the defitive management of bacterial vaginosis?
metronidazole (orally or vaginal gel)
OR clindamycin (orally or vaginal gel)
What is the pathophysiology of bacterial vaginosis?
- Reduction in the acid-producing normal flora of the vagina [Lactobacillus]
- Leads to growth of anaerobes and other fastidious microorganisms
What types of HPV are oncogenic?
What types are not?
HPV 6 & 11 = not oncogenic (cause geintal warts)
HPV 16 & 18 = oncogenic
What else, other than HPV infection, increase ones risk of cervical cancer?
- HPV
- Sexual activity
- Cigarette smoking
- OCP
- Immunosupression
What type of epithelium is in the endocervical canal?
What type of epithelium is in the cervix?
What area of epithelium is most likely to become dysplastic when infected by HPV?
endocervical canal = columnar
cervix = squamous
between this is the transitional zone / where there is “cervical ectropion” - this is the area which is most likely to become dysplastic
What systems are used to grade dysplastic changes of the cervix?
- The Bethesda System (SIL system) - which looks at individual cells and their degree of displasia
- Cervical Intraepithelial Neoplasia system (CIN) - which looks at the degree of dysplasia and the depth of dysplasia
When is the Gardasil vaccine currently funded?
Boys and girls aged 12-13 (year 7)
Need to receive the three doses within a year (preferably at 0, 2 and 6 months)
If outside this age range - have to pay for it (most efficacious if haven’t already had sex)
What types of HPV does Gardisil proect against?
6, 11, 16 and 18
At what age is it recommended to first have Pap smears?
How often is it recommended to have them?
Until what age?
18-20 years old, or 2 years after one has first had sex (whichever is later)
(Girls who have had sex earlier than 18 years do not require a Pap smear until they are 18; even if they first has sex at the age of 15).
Current guidelines suggest having Pap smears every 2 years until the age of 70
(Note that women between 50-70 are the most uninvestigaed population)
Describe the difference between current guidelines with Pap smears and the new HPV testing which will likely roll out in May 2017
Changes
Age commencing cervical screening
From 18 years to 25 years
Test performed
HPV testing instead of Pap smear +/- liquid based cytology
Equipment used
Brush as for liquid-based cytology (instead of spatula)
Frequency of test
Every 5 years instead of every 2 years
Exit age
Between 70-74 years old (instead of 70)
bacteral vaginosis is potentially serious in what population?
pregnant women
increases the risk of miscarriage
What is the difference between Chancroid versus Chancre?
Chancre = painless ulceration most commonly formed during the primary stage of syphilis. This infectious lesion forms approximately 21 days after the initial exposure to Treponema pallidum.
Chancroid = painful ulceration which occurs 3-10 days after contact with Haemophilus ducreyi.
What is the typical presentation of HSV?
Multiple painful genital ulcers one to two weeks following exposure to the virus. Can also be associated with a systemic illness.
What is the treatment of HSV?
Acyclovir (cream, oral or IV depending on the severity)
What are the types of HSV and what do they cause?
HSV 1 = oral herpes
HSV 2 = genital herpes
What is the GP management mnemonic?
DKA EMP REAP
Diagnosis
Knowledge
Attitudes
Explain
- NORMALISE
- causes
- symptoms
- complications
Management
- Basics
- Place and Person
- Ix and CD
- Defitive Management
- lifestyle
- non-pharm
- pharm
- invasive / surgical
- Prevention / Long Term / Follow Up
Preventative Opportunities
Reinforce
Evaluate the Consultation
Arrange Follow up
Pamphlet / Website!
- A very good website is the better health channel
How do you organise your thoughts of prevntative opportunities in GP?
/ what do you say in an OSCE?
SCREEN
SNAP
CV risk
Reproduction
Emotions
Elderly
Neoplasms
Scripts:
- Ascertain age.
- Ascertain whether or not they have had the recent test you are going to propose / ascertain when their last GP visit was
- “Now, because you are x years old and this is your first visit to the GP in y years – there are certain screening tests which are recommended we do every so often, to screen for certain conditions such as ….”*
- “With this is mind, I think it would be wise to organize a, b and c, as well as consider the issue for which you have come to see me, today.”*
What is the definitive management + follow-up / long term management of psoriasis?
Lifestyle
- Avoid skin damage & triggers
- Moisturise
Pharmacological
Topical - “CC DD”
- intermittent, short term potent Cortocistreoids
- Calcipatriol (a vitamin D analogue)
- Dithranol (inhibits DNA synthesis)
Systemic - refer to dermatologist
- Oral mathotrextae
- Biological agents - infliimab
Physical Therapy
- Phototherapy with UV light
Follow Up
- 2 - 3 x increased CV risk with psoriasis
- Psoriatic arthritis
- Eryhroderma
What are the complications of psoriasis?
Psoriatic arthritis
Erythroderma
2 - 3 x increased CV risk
Poor self esteem
What is the reassurance of eczema and psoriasis you should give patients?
Very common
Don’t cause scarring or disfigurment
What is the definitive management of eczema?
Lifestyle
- Avoid skin breakdown
- avoid dryness
- avoid heat
- avoid irritants
- Restore skin barrier
- moisturise+++
Pharmacological Treatment
- Topical steroid cream: low, medium or high dose
- If severe refer to dermatologist for oral steroid or immunsuppressive agents eg. methotrexate
Alternatives / Additions:
- If want to avoid steroid –> pimecromilous
- If have an itch –> anti-histamines
- Wet dressings or occlusive dressings
- If infected –> antibiotics + oatmeal washes / bleach baths
What is the definitive management of acne?
Lifestyle
- wash skin
- avoid sun damage
- avoid squeezing lesions
Topical Treatment: ABC
- Adapelene (topical retinoid)
- Benzyl peroxide
- Clindamycin (topical antibiotic)
Oral Treatment: DE
- Doxycycline [replaces topical clindamycin]
- Estrogren + progesterone [ie. OCP] in females
Referral
- For isotretinoin
Ongoing
- Psych
How do you diagnose T2DM?
5.5 - 7 - 11
Need two positive tests (preferably different)
Fasting > 7
Random > 11
- If first test is uncertain* [fasting: 5.5-7 or random: 7-11] need to refer for 2OGTT [which is like a controlled random]
- Can* refer for HbA1c now? >6.5% = T2DM
What is a relative contraindication to prescribing some an ACEi?
What would you prescribe instead?
angioedema
What is glaucoma and what are it’s types?
High intraoccular pressure causing death of optic nerve cells.
Open angle glaucoma = poor drainage of aqueous pressure due to dysfunctional drainge by the canal of schlemm
Closed angle glaucoma = poor drainage due to closure of the angle between the cornea and the iris
what is seen on opthalmoscopy in gluucoma?
Cupping
Measure the cup:disc ratio
What is the typical presentation of open angle glaucoma?
It is asymptomatic!
Patient’s may have loss of peripheral vision, but usually won’t notice
What examination findings are typical of glaucoma?
- raised pressure
- cupping on ophthalmoscopy
- loss of peripheral vision (might have to be measured by a special machine called an automated perimetry)
What is the typical presentation of acute glaucoma?
An extremely red and painful eye
+/- N&V
Patients may reoprt seeing halos around lights
what are the examination findings of acute angle glaucoma?
Pupil is sluggish and mid-dilated
Slightly cloudy cornea
High pressures
Rock hard eye on palpation
What is the treatment of chronic glaucoma?
- Topical beta-blockers
- Also topical alpha-agonists, carbonic anhydrase inhibitor (Diamox), and prostaglandin analogues
- Trabeculectomy
What is a cataract?
Any opacity of the lens, regardless of aetiology
(they can occur in different parts of the lens)
What are the causes of visual loss?
Gradual Visual Loss [COAD]
- Cataracts
- Open angle glaucoma
- Age-related macular degeneration
- Diabetic retinopathy
Suddent Visual Loss [BRCO]
- Branch retinal vein occlusion
- Retinal detachment
- Central tretinal artery occlusion
- Optic neuritis
Non-eye related causes [TMG]
- TIA
- Migraine
- Giant cell arteritis
Which are arteries and which are veins?
Arteries - plaer, thinner
Veins - thicker, darker
What type of haemorrhages are seen in diabetic retinopathy?
dot and blot haemorrhages
what type of haemorrahes are seen on hypertensive retinopathy?
flame haemorrhages