Past papers Flashcards
Influenza vaccine type
inactivated
Malaria prophylaxis pregnancy drug
Mefloquin
Metronidazole mechanism of action
Inhibits DNA synthesis
Antibiotic that binds 50s ribosomal unit - inhibit protein synthesis
Clindamycin
rate of recurrence of ectopic pregnancy
15%
lidocaine with adrenaline max dose
7mg/Kg or 490mg for a 70kg person
Doxazosin mechanism of action
Alpha 1 receptor antagonist
Fluconazole mechanism of action
cytochrome P450 enzyme 14α-demethylase
Robertsonian translocation possible in which aneuploidy
Down’s, Patau. Not Edward’s (only occurs with acrocentric chromosome pairs)
Metyrapone mechanism of action
Inhibits adrenal 11B-hydroxylation leading to reduced cortisol and resultant increase in ACTH production
Ischaemic stroke - type of necrosis
Colliquative necrosis
Which immunoglobulin is dimeric
IgA
Which HLA class is expressed in extravillous trophoblast
HLA-G
Sperm production per day
300 million/day
Clomiphene is a
SERM
LH is structurally similar to
FSH, HCG, TSH
What percentage of DNA is mitochondrial DNA
1
1%
Major buffer in urine
Phosphate
Carbons in the sex hormones
Androgens: 19C
Oestrogens: 18C
Progesterones 21C
Allantois is derived from
Endoderm
The ureteric bud is derived from
Mesonephric duct
Ondansetron mechanism of action
Serotonin 5-HT3 antagonist
enzyme that catalyses conversion of purines to uric acid
Xanthine oxidase
Name for cellular process in breast that allows prolonged breast feeding
Lobular hyperplasia
Bladder embryology
Trigone forms from mesonephric ducts
Rest of bladder forms from urogenital sinus
Carboprost is
Synthetic prostaglandin F2a analogue
Misoprostol is
Synthetic prostaglandin E1 analogue
Most common contrast agent used for MRI exams
Gadolinium
Secondary hyperparathyroidism is usually associated with
Chronic kidney disease
Labetalol mechanism of action
Combines selective alpha 1 and non-selective beta receptors antagonist
Deep circumflex iliac artery is a branch of which artery?
External iliac artery
What is the SI unit for the absorbed dose of ionising radiation
Gray
Which organ is principle site of urea synthesis via urea cycle
Liver
Most common cause of cushing’s syndrome
Iatrogenic steroid administration
Gartner’s duct is a remnant of what
Mesonephric duct
Where is bicarbonate reabsorbed in the kidney
PCT
Duchenne muscular dystrophy inheritance pattern
X-linked recessive
Lymph drainage of cervix and upper vagina
External iliac, internal iliac, obturator and sacral LNs
HIV vertical transmission - most common time
Labour and delivery
Parent compound of most eicosanoids
Arachidonic acid
Epithelium lining the ECTOcervix
Stratified squamous, non-keratinised
Which cells produce Mullerian-inhibiting substance in the developing foetal testis
Sertoli cells
Endocrine gland responsible for increased sweating in pregnancy
Thyroid
Lichen planus can become which sort of cancer
Squamous cell carcinoma
Which hormone enhances urinary calcium excretion
Calcitonin
Passive neonatal immunity - immunoglobulin
IgG
Which tocolytic agent exerts effects through blocking of oxytocin receptor
Atosiban
Which hormone increases in second half of menstrual cycle and decreases endometrial proliferation
Progesterone
Most common adverse effect of Depo medroxyprogesterone acetate
Menstrual abnormalities
marked glandular growth and mitosis, stromal edema with subnuclear vacuoles and prominent coiled spiral arterioles’’ This finding are consistent with what histological type of endometrium
Secretory endometrium
pyloric stenosis metabolic abnormality
Hypochloraemic hypokalaemic metabolic alkalosis
Narrowest part of fallopian tube
Isthmus
Lancefield grouping of streptococci is based on presence of
Carbohydrate antigen on cell wall
Enzyme buffer of co2 in red blood cells
carbonic anhydrase
streptomycin damages which cranial nerve
8 (vestibulocochlear)
Cause of increased GFR in pregnancy
Increased plasma volume
Sulfur granules, IUD in situ
Actinomyces species
Sub Occipito-bregmatic
OA
9.5cm
Occipito frontal
Deflexed OP
11.5cm
Submental bregmatic
Face presentation
9.5cm
Mento-vertical
Brow presentation
14cm
DES-associated cancer
ed
Clear cell carcinoma of vagina
Neostigmine mechanism of action
Anticholinesterase
Homogeneously black area on ultrasound name
Anechoic
Artery occasionally branching from external iliac or inferior epigastric instead of internal iliac
Obturator artery
Lithium use in pregnancy associated with which cardiac defect
Ebstein’s anomaly
Most common inherited bleeding disorder
von Willebrand’s disease
Ligament that supports the bladder
Pubocervical ligament
How many days from primordial follicle to mature ovum
320 approx
TAP block location
Between transversus abdominis and internal oblique
Most common in uteru infection causing fetal anaemia
Parvovirus B19
Sensory innervation to the cervix
Pelvic splanchnic nerves
Gram negative dipplococci STI
Gonorrhoea
40mm CRL gestational age
11 weeks
30mm CRL gestational age
10 weeks
At what level does the aorta bifurcate
L4
What level does ovarian artery arise from aorta
L2
Which hormone decreases appetite as levels increase
Leptin
Where does Krukenberg tumour come from
GIT metastasising to ovary
Which artery supplies anorectal canal superior to pectinate line
Inferior mesenteric artery
Which artery supplies anorectal canal inferior to pectinate line
Inferior rectal artery (from internal pudendal artery)
Blood volume in a term newborn in ml/kg
85ml/kg
Molluscum contagiosum virus
Pox virus
Untreated syphillis, what percentage go on to develop tertiary syphillis
35%
Trimethoprim mechanism
Inihibits dihydrofolate reductase
radioactive decay SI unit
Becquerel
Muscles damaged in episiotomy
Bulbospongiosus and superficial transverse perineal muscle
which cells produce surfactant
Type 2 pneumocytes
organism associated with bladder catheterisation
Pseudomonas aeruginosa
25 day cycle when do you ovulate
Day 11
ovarian cancer endometriosis link
Clear cell carcinoma
Conn’s syndrome acid basis disturbance
Hypokalaemic metabolic alkalosis
Finasteride mechanism
5a reductase inhibitor
How is urea transferred from fetal to maternal circulation
Passive diffusion
Clue cells, fishy odour
Gardnerella vaginalis (BV)
which cells produce PTH
Chief cells
Bartholin’s gland is located in which anatomical location
Superficial perineal pouch
Sympathetic control of bladder
Hypogastric nerve T12-L2
Earliest sign of puberty in girls
Thelarche
Vincristine mechanism of action
Inhibits microtubule function
Mirabegron mechanism of action
Selective beta 3 adrenoceptor agonist
Which ligament allows standing upright with minimal muscular support
Iliofemoral ligament
Rejecting the null hypothesis when there is no difference
Type 1 error
Endometrial cancer - endometrial glands and metaplastic cartilage
Endometrial carcinosarcoma
The gonads are derived from
Intermediate mesoderm
cell organelle abundant in cells producing antibodies
Rough ER
Psammoma bodies are collections of
Calcium salts
Terbutaline mechanism of action
Beta 2 agonist
GnRH is what type of biochemical
Decapeptide
Active management of 3rd stage reduces PPH risk
60%
Methotrexate is a
antimetabolite
magnesium is secreted in which nephron segment
DCT
Haldane effect
Increased capacity for deoxygenated blood to carry CO2
Hydralazine mechanism of action
Direct-acting smooth-muscle relaxant
Drug class causing neonatal kernicterus
Sulphonamides
PID abx
Ceftriaxone
Metronidazole
Doxycycline
nasal hypoplasia and skeletal abnormalities, including short limbs and digits (brachydactyly), and stippled epiphyses.
Warfarin teratogenicity
The vitelline duct connects
Midgut and yolksac
LMWH dose before regional anaesthesia
Stop 24hrs before
Organelles in type 2 pneumocytes which house surfactant
Lamellar bodies
Sacrospinous ligament fixation - nerve damage
Pudendal nerve
Treatment for chicken pox in pregnancy
800mg aciclovir 5 times/day
hPL structurally homologous to
Growth hormone
What is Raloxifene
SERM - prevents osteoporosis (agonist) and reduces risk of breast cancer (antagonist)
Cytokeratins
Carcinoma
iodine transport into thyroid gland - symport with
Sodium
Simple endometrial hyperplasia resembles
Proliferative endometrium
Which cells are phagocytic for residual bodies left over from spermatogenesis
Sertoli cells
Hip adduction nerve
Obturator nerve
Diabetes insipidus in pregnancy - likely cause
Placental vasopressinase
which chromosomes are capable of robertsonian translocation
13,14,15,21,22
Which nerves enters thigh by passing underneath inguinal ligament just medial to ASIS
Lateral cutaneous nerve of thigh
Drug that causes premature closure of PDA
Indomethacin (NSAID)
Kolmogorov Smirnov test
Non-parametric test comparing two non-related independent samples
Lymph drainage of sigmoid colon
Inferior mesenteric and preaortic lymph nodes
Kleihauer test basic principle
Fetal haemoglobin resistant to acid elution
Strawberry cervix
Trichomonas vaginalis