Phase 4 Mocks Medschool Flashcards
What are common causes of hypoglycaemia ?
- Insulinomas
- Self-administration of insulin/Sulphonylureas
- Liver failure
- Addison’s disease
- Alcohol
- Nesidioblastosis (beta cell hyperplasia)
- Critical illness e.g. sepsis
Which medications can cause hypoglycaemia ?
- Insulin
- Sulphonylureas e.g. gliclazide
What is the bodies physiological reaction to hypoglycaemia
- Hormonal response first response is decreased insulin secretion and increased glucagon secretion
- Growth hormone and cortisol are released but later there is increased catecholamine-mediated (adrenergic) and acetylcholine-mediated (cholinergic) neurotransmission in the peripheral autonomic nervous system in the central nervous system
What are features of hypoglycemia with a blood sugar <3.3 mol ?
- Autonomic symptoms due to the release of glucagon and adrenaline
- Sweating, shaking, anxiety, hunger and nausea
What are features of hypoglycemia with blood <2.8mmol
- Weakness
- Visual changes
- Confusion
- Dizziness
- Severe = convulsions and coma
How could one check for possibility of deliberate excess exogenous insulin ?
- Test C-peptide
- Its production is absent from exogenous insulin
What would high insulin and high C-peptide suggest ?
- Endogenous insulin production
- Cause likely to be insulinoma/sulfonylurea use/abuse
What would high insulin and low C-peptide suggest ?
- Exogenous insulin administration
- Suggesting exogenous insulin overdose/fictitious disorder
What would low insulin and low C-peptide level suggest ?
- Alcohol induced hypoglycemia
- Critical illness e.g. sepsis
- Adrenal insufficiency
- Fasting/starvation
- Growth hormone deficiency
Management of hypoglycaemia community
- Oral glucose 10-20g liquid, gel or tablet
- Hypokit can be prescribed containing a syringe and vial of glucagon for IM or SC injection
Management of hypoglycaemia
- If patient is alert then oral glucose 10-20g should be used in liquid, gel or tablet form
- Unable to swallow then SC or IM glucagon
- IV glucose 20% 100ml over less than 15 mins
What condition will around 50% of patients with temporal arteritis also have ?
- Polymyalgia rheumatica
Typical features of TA ?
- Typically > 60 YO
- Rapid onset
- Headache
- Jaw claudication
- Reduced vision
- Tender, palpable temporal artery
- Lethargy, depression, low grade fever, anorexia, night sweats
What polymyalgia rheumatica symptoms could present in a patient with TA ?
- Aching
- Morning stiffness (but not weakness) in proximal limb
What investigations should be done in TA ?
- Inflammatory markers i.e. CRP, ESR
- Temporal artery biopsy/ultrasound
How is TA treated ?
- High dose glucocorticoids – no visual loss then pred, if visual loss than IV methylprednisolone
- Urgent ophthalmology review
- (bisphosphonates are required due to long, tapering course of steroids required)
- How does trigeminal neuralgia present ?
- Unilateral brief electric shock like pains with abrupt onset and termination limited to one or more divisions of the trigeminal nerve
- What can trigger pain in trigeminal neuralgia ?
- Light touch including washing, shaving, smoking, talking and brushing teeth
- Frequently occurs spontaneously
- What would one consider red flag symptoms in a potential trigeminal neuralgia presentation ?
- Sensory changes
- Ear/hearing problems
- Hx of skin or oral lesions
- Pain only in the ophthalmic division of the trigeminal nerve
- Bilateral presentation
- Optic neuritis
- Fx of MS
- Age < 40
Trigeminal neuralgia first line management
- Carbamazepine
- Failure to respond and/or atypical features should prompt referral to neurology
What condition do 5-10% of pts diagnosed with HTN also have ?
- Primary hyperaldosteronism (including Conn’s)
- Making it the most common cause of secondary HTN
Renal causes of secondary hypertension
- Glomerulonephritis
- Pyelonephritis
- Acute polycystic kidney disease
- Renal artery stenosis
Endocrine disorders that can lead in secondary hypertension
- Phaeochromocytoma
- Cushing’s syndrome
- Acromegaly
- Congenital adrenal hyperplasia
Medications that can cause secondary HTN
- Steroids
- MOA-I
- COCP
- NSAIDs
- Leflunomide
What features of a patients presentation would indicate a case more likely to be secondary hypertension ?
- HTN occurs at a younger age with significantly elevated BP which is often resistant to medication
- What examination signs might suggest coarctation of the aorta ?
- Radio-femoral delay
- Left ventricular heave
- Weak peripheral pulses in the legs
- Ejection systolic murmur
- How could coarctation of the aorta be diagnosed ?
- Echocardiography
- CT aorta
- How would coarctation of the aorta be managed ?
- Conventional open surgery
- Ballon angioplasty and stent insertion
- What is the law that governs capacity ?
- The Mental Capacity Act of 2005
- Applies to all adults over the age of 16
- What are the 5 key principles of the capacity act ?
- A person must be assumed to have capacity unless it is established that they lack capacity
- A person should not be treated as unable to make a decision unless all practicable steps to help him to do so have not been taken without success
- An unwise decision does not mean a person is unable to make a decision
- An act or decision under this act for or on behalf of a person should be in their best interest
- Before the act is done or the decision made regard must be taken to make the process as least restrictive of the person’s rights and freedom of action
- What must be tested for in a Capacity Assessment ?
- He or she has an impairment or disturbance in the functioning of their mind or brain whether permanent or temporary AND
- A. Can understand the information
- B. Can retain the information
- C. Can use or weight the information
- D. Communicate the decision
- What must occur if a patient lacks capacity ?
- A best interest decision must be made
- What must be considered when making a best interest decision ?
- Whether a person is likely to regain capacity and can the decision wait
- How to encourage and optimise the participation of the person in the decision
- The past and present wishes, feelings, beliefs, values of the person and any other relevant factors
- Views of other relevant people
- What can be made by a person who could lose their capacity in the future ?
- Lasting Power of Attorney (LPAs)
- Can make health and welfare decisions and decisions about life-sustaining treatment if the LPA specifies that
- What is an advance decision ?
- Can be drawn up by anybody specifying what specific treatments someone would like where they to loose capacity
- Can be verbal unless they specify refusing life-sustaining treatment
- ADs cannot demand treatment
- In a medical ward what actions could be considered a deprivation of liberty
- Restraint
- Sedation
- What are core requirements that need to be followed to ensure a Deprivation of Liberty Safeguard is valid
- Avoid if possible
- Act in the patients best interest
- Only for the immediate intervention required
- For as short as possible
- Alternatives need to have been considered
- GMC good practice principles
- Making the care of patients the first concern
- Providing a good standard of practice and care, and working within competence
- Working in partnership with patients and supporting them to make informed decisions about their care
- Treating colleagues with respect and help to create an environment that is compassionate, supportive and fair
- Acting with honesty and integrity and being open if things go wrong
- Protecting and promoting the health of patients and the public
- What laws/acts are used to treat patients in emergency scenarios ?
- Common law: used to treat patients in emergency scenarios
- Mental Capacity Act: used to treat patients for a physical disorder e.g. delirium/sepsis
- Mental Health Act: used in patients who require treatment for mental disorders (5(2), 2 or 3)
- What is a Section 2 for ?
- Admission for assessment up to 28 days (cannot be removed)
- Treatment may be given against the patients wishes
- Who can approve a Section 2 ?
- An Approved Mental Health Professional (AMHP) or rarely the nearest relative (NR) makes the application on the recommendation of 2 doctors
- One of the doctors should be approved under section 12(2) of the Mental Health Act (usually consultant psychiatrist)
- What is a Section 3 ?
- Admission for treatment for up to 6 months that can be renewed
- AMHP along with 2 doctors both of whom which must have seen the patient within the past 24 hours
- What is a Section 4 ?
- 72 hour assessment order
- Used as an emergency, when a section 2 would involve an unacceptable delay
- A GP or AMHP or nearest relative
- Often changed to Section 2 upon arrival at hospital
- What is a section 5(2) ?
- A patient who is voluntary patient in hospital can be legally detained by a doctor for 72 hours
- What is a section 5(4) ?
- Allows a nurse to detain a patient who is voluntarily in hospital for 6 hours
- What is a Section 17a ?
- Supervised Community Treatment (Community Treatment Order)
- Can be used to recall a patient to hospital for treatment if they do not comply with conditions of the order in the community, such as complying with medication
- What is a Section 135 ?
- A order to obtained to allow the police to break into a property to remove a person to a Place of Safety
- What is a Section 136 ?
- Someone found in a public place who appears to have a mental disorder can be taken by the police to a Place of Safety
- Can only be used for up to 24 hours whilst a Mental Health Act assessment is arranged
- What surgical options are available for patients with severe peripheral artery disease ?
- Angioplasty
- Sent
- Bypass graft surgery
- What symptoms would present if a patients bypass graft had occluded ?
- Cool and pale foot
- Absent pulse in graft
- How does compartment syndrome present ?
- Swollen, tense and tender calf with a pink foot
- Pain on dorsiflexion
- Presence of a pulse does not rule out
- When can compartment syndrome occur ?
- Fracture
- Ischemia reperfusion injury in vascular patients
- Which injuries are commonly associated with compartment syndrome ?
- Supracondylar fractures
- Tibial shaft injuries
- How is compartment syndrome diagnosed ?
- Measurement of intercompartmental pressure
- Excess of 20mmHg are abnormal and >40mmHg is diagnostic
- What could be discussed to support and advice a patient with a new diagnosis of metastatic cancer ?
- Sign post to spiritual care
- Alternative therapies
- Management of pain
- Mental health support
- Palliative care and end of life care
- Advance directives
- What medications can be deprescribed in palliative care ?
- Long term prophylaxis medications
- Statins
- Antihypertensives
- What can be prescribed in palliative care for agitation ?
- Midazolam
- What can be prescribed for respiratory secretions ?
- Hyoscine butylbromide
- What can be used to treat muscle spasm and spasticity in palliative care ?
- Baclofen 1st line
- Diazepam or midazolam 2nd line
- What could be prescribed for bowel colic/obstruction in palliative care ?
- Hyoscine butylbromide
- Also consider laxatives
- What can be used to treat constipation in palliative care ?
- Stimulant laxatives e.g. Bisacodyl or Senna 1st line
- Add osmotic laxatives e.g. macrogol 3350 or lactulose 2nd line
- Add Docusate sodium 3rd line
- What can treat dysphagia in palliative care ?
- Dexamethasone
- What should be prescribed for nausea and vomiting associated with gastric issues in palliative care ?
- Metoclopramide 1st
- Domperidone 2nd
- What can be prescribed for nausea and vomiting with chemical causes (hypercalcemia, morphine use or renal failure) in palliative care ?
- Haloperidol
- What anti-emetic can be used in palliative care associated with raised intracranial pressure ?
- Cyclizine (in conjunction with dexamethasone)
- What can haloperidol be used to treat in palliative care ?
- Nausea and vomiting (associated with chemical causes)
- Agitation/delirium
- What can be prescribed for patients with anxiety in palliative care ?
- Months left to live – SSRIs
- Weeks – diazepam or lorazepam
- What can be used to treat seizures in palliative care ?
- Levetiracetam
- Midazolam may be preferred in last days
- How can hiccups be treated in palliative care ?
- Prokinetic e.g. Metoclopramide
- Peppermint oil
- PPI e.g. Lansoprazole
- What can help treat noisy respiratory secretions in a patients last days ?
- Hyoscine butylbromide
- How could a malodourous fungating tumour be treated ?
- Topical metronidazole in conjunction to systemic treatment
- How can pruritus be treated in palliative care ?
- Emollients
- Levomenthol if resistant
- What kind of sickle cell crisis’s can there be ?
- Thrombotic ‘vaso-occlusive’ and ‘painful crises’
- Acute chest syndrome
- Anaemia (aplastic or sequestration)
- Infection
- What can precede a thrombotic sickle cell crisis ?
- Infection, dehydration, deoxygenation
- How is a thrombotic crisis diagnosed ?
- Clinically – no specific test
- What is acute chest syndrome sickle cell crisis
- Vaso-occlusion within the pulmonary microvasculature Infarction in the lung parenchyma
- Presents with dyspnoea, chest pain, pulmonary infiltrates on chest x-ray and low pO2
- How is an acute chest syndrome sickle cell crisis treated ?
- Pain relief
- Respiratory support e.g. high flow oxygen
- ABxs
- Transfusion
- What is an aplastic crises in sickle cell ?
- Infection with parvovirus
- Causing a sudden fall in haemoglobin
- Bone marrow suppression causes a reduced reticulocyte count
- What is a sequestration crises in sickle cell ?
- Sickling within organs such as the spleen or lungs causing pooling of blood with worsening of anaemia
- Associated with an increased reticulocyte count
- General management of a sickle cell crisis
- Analgesia e.g. opiates
- Rehydrate and keep warm
- Oxygen
- Consider Abx
- Blood transfusion if severe
- Exchange transfusion if vaso-occlusive crisis (i.e. stroke, acute chest syndrome, multi-organ failure)
- Long term management of sickle cell
- Hydroxyurea
- Pneumococcal polysaccharide vaccine every 5 years
- What is ascites ?
- An abnormal collection of fluid in the abdomen
- What can cause ascites with a SAAG > 11g/L
- Indicates portal hypertension
- Liver disorders e.g. cirrhosis/alcoholic liver disease, acute liver failure and liver metastases
- Cardiac – right heart failure or constrictive pericarditis
- Other – Budd-Chiari syndrome, portal vein thrombosis, veno-occlusive disease or myxoedema
- What can cause ascites with SAAG < 11g/L
- Hypoalbuminemia e.g. nephrotic syndrome or severe malnutrition
- Malignancy – peritoneal carcinomatosis
- Infections – tuberculous peritonitis
- Other – pancreatitis, bowel obstruction, biliary ascites
- How is ascites managed ?
- Reducing dietary sodium
- Fluid restriction if sodium < 125
- Aldosterone antagonist e.g. spironolactone
- Often add loop diuretics e.g. furosemide
- Drainage if tense ascites (with albumin cover)
- Prophylactic antibiotics – oral ciprofloxacin if ascitic protein 15g/l
- Transjugular intrahepatic portosystemic shunt in some patients
- Which blood tests best examine synthetic liver function ?
- INR
- Albumin
- Name potential causes for confusion in a patient with cirrhosis
- Hepatic encephalopathy
- Intracerebral bleed
- Electrolyte or vitamin deficiency
- Alcohol withdrawal (Wernicke’s encephalopathy)
- Sepsis
- Medication or intoxication
- Spontaneous bacterial peritonitis
- GI bleed
- In audiograms what should the results be above on the x axis ?
- 20dB
- In sensorineural hearing loss what type of hearing is impaired ?
- Air and bone condition
- In conductive hearing loss what type of hearing is impaired ?
- Air conduction
- How is Weber’s test performed ?
- Strike the tunning fork
- Place at centre of the patients forehead
- Ask the patient if they can hear the sound and in which ear is it loudest
- How will Weber’s test present in sensorineural hearing loss ?
- Sound will be louder in the normal ear as it is better at sensing the sound
- How will Weber’s test present in conductive hearing loss ?
- The sound will be louder in the affected ear
- When the tuning fork’s vibration is transmitted directly to the cochlea, rather than having to be conducted, the increased sensitivity makes it sound louder in the affected ear.
- What does Weber’s Test test ?
- Which ear is affected
- Is it conductive hearing loss ?
- How is Rinne’s Test Performed ?
- Strike a tunning fork
- Place the flat end on the mastoid process (tests boney conduction)
- Ask the patient when they can no longer hear the noise
- When yes move the tunning fork and hover 1cm from ear
- Ask patient if they can now hear (tests air conduction)
- What is a normal Rinne’s test ?
- The pt can hear the sound when the fork is moved from the mastoid process to the ear
- It is normal for air conduction to be better than bone conduction
- This is Rinne’s positive
- What is an abnormal Rinne’s test ?
- When bone conduction is better than air conduction
- This suggests a conductive cause for the hearing loss
- Sound can still be transmitted through the bones whoever sound is less able to travel through the air, ear canal, tympanic membrane and middle ear to the cochlea due to a conductive problem
- What are causes of sensorineural hearing loss ?
- Presbycusis (age related)
- Nosie exposure
- Meniere’s disease
- Labyrinthitis
- Acoustic neuroma
- Neurological conditions e.g. stroke, MS or brain tumour
- Infections e.g. meningitis
- Medications e.g. furosemide, gentamicin or chemo medications
- What are causes of conductive hearing loss ?
- Ear wax
- Infection e.g. otitis media or otitis externa
- Fluid in the middle ear
- Eustachian tube dysfunction
- Perforated tympanic membrane
- Otosclerosis
- Cholesteatoma
- Exostoses
- Tumours
- How would a right sided labyrinthitis present on hearing tests ?
- Labyrinthitis is a sensorineural hearing loss
- Weber’s test = the tunning fork is heard loudest in the unaffected ear e.g. left ear
- Rinne’s test will be normal in both ears
- Which parts of the ear mediate conductive hearing ?
- The outer and middle ear
- Which part of the ear mediates sensorineural hearing loss ?
- The inner ear
- X-ray changes associated with osteoarthritis
- LOSS
- Loss of joint space
- Osteophytes (bone spurs)
- Subarticular sclerosis (increased density of the bone along the joint line)
- Subchondral cysts (fluid-filled holes in the bone)
- Hand signs of Osteoarthritis
- Heberden’s nodes (DIP joints)
- Bouchard’s nodes (PIP joints)
- Squaring at the base of the thumb (CMC joint)
- Weak grip
- Reduced range of motion
- Hand signs seen in advanced RA
- Z-shaped deformity (thumb)
- Swan neck deformity (hyperextended PIP and flexed DIP)
- Boutonniere deformity (hyperextended DIP and flexed PIP)
- Ulnar deviation if the fingers at the MCP joints
- X-ray Changes in RA
- Periarticular osteopenia
- Boney erosions
- Soft-tissue swelling
- Joint destruction and deformity (in more advance disease)
- How is C. difficle tested for ?
- Stool sample for PCR/microscopy and culture
- Also test stool sample for C.difficle toxin
- List indications for ICU admission in a deteriorating patient with pneumonia
- Respiratory or metabolic acidosis (pH < 7.26)
- Persistent hypotension
- PaO2 <8 despite inspire O2
- PaCo2 >6.5
- Serial ABGs indicating respiratory failure
- Exhaustion, drowsiness, LOC
- Evidence of septic shock
- Management of low severity CAP
- Amoxicillin 500 mg TDS for 5 days
- Doxycycline or clarithromycin if pen allergy
- Management of high severity CAP
- Co-Amoxiclav
- Moderate CAP with suspected atypical micro cause
- Amoxicillin Plus
- Clarithromycin (erythromycin if pregnancy)
- What is the most common cause of hypercalcemia in outpatients ?
- Primary hyperparathyroidism
- What is the most common cause of primary hyperparathyroidism ?
- Solitary adenoma (85%)
- What is a good pneumonia for hypercalcemia ?
- Bones, stones, groans and moans
- How can hypercalcemia present ?
- Polydipsia and polyuria
- Depression
- Anorexia, nausea and constipation
- Peptic ulceration
- Pancreatitis
- Bone pain/fracture
- Renal stones
- Hypertension
- How can primary hyperparathyroidism be investigated ?
- Bloods – raised Ca2+, low phosphate, PTH may be raised or normal (if face of high Ca2+ this is abnormal)
- Technetium-MIBI subtraction scan
- X-ray – pepperpot skull, osteopenia
- How is primary hyperparathyroidism managed ?
- Definitive = total parathyroidectomy
- Cinacalcet can be used if not suitable for surgery
- How does hypercalcemia present ?
- Bones, stones, groans and moans
- Corneal calcification
- Hypertension
- Shortened QT interval on ECG
- How does hypercalcemia present on ECG ?
- Shortened QT interval on ECG
- How is hypercalcemia managed ?
- Rehydration with NaCl 1000ml 4 hours
- Bisphosphonates can also be used after rehydration
- How is hypercalcemia associated with malignancy managed ?
- Calcitonin (salmon)
- What are essential questions when taking a Hx for testicular torsion ?
- Trauma
- Sexual history
- Urinary symptoms
- Previous hx
- Systemic symptoms
- Speed of onset
- What would one find on examination of a testicular torsion ?
- Cord is most tender
- Testical is retracted
- Absence of cremasteric reflex
- What is epididymis-orchitis ?
- Infection of the epididymis +/- the testes resulting in pain and swelling
- Most commonly caused by local spread of infections from the genital tract (Chlamydia trachomatis and Neisseria gonorrhoeae in young adults and E.coli in older adults)
- What would one find on examination of epididymis-orchitis ?
- Erythema and warmth
- Involvement of the scrotal sac
- Prehn’s sign (alleviation of scrotal pain by lifting the testical)
- What is testicular torsion ?
- The twisting of the spermatic cord resulting in testicular ischemia and necrosis
- Most common in males between 10 and 30 with peak incidence 13-15 years
- What are the presenting features of testicular torsion ?
- Sudden onset severe pain which may referrer down to the lower abdomen
- Nausea and vomiting
- Swollen and tender testis retracted upwards
- Loss of cremasteric reflex and no Prehn’s sign
- What are features of Epididymo-orchitis ?
- Unilateral testicular pain and swelling
- Urethral discharge may be present but urethritis is often asymptomatic
- Prehn’s sign
- Cremasteric reflex present (lost in TT)
- How is Epididymo-orchitis investigated ?
- In younger patients assess for STI e.g. urethral swabs, NATT testing for GN
- In older adults with low-risk sexual history send a mid-stream urine sample for culture
- How is Epididymo-orchitis managed ?
- Chlamydia – doxycycline 7 days course
- Gonorrhea – IM ceftriaxone once
- Enteric organism ofloxacin
- What are DDs of peritonsillar abscess ?
- Tonsilitis
- Glandular fever
- Tonsillar cancer
- General symptoms of tonsillitis
- Sore throat
- Painful swallowing
- Fever
- Neck pain
- Referred ear pain
- Swollen tender lymph nodes
- Specific signs that suggest peritonsillar abscess
- Trismus (unable to open mouth)
- Change in voice
- Swelling and erythema in area beside tonsils
- What causes trismus in peritonsillar abscess ?
- Pus causes the pterygoid muscle to go into spasm preventing the opening of the mouth
- What bacteria are associated with peritonsillar abscess ?
- Streptococcus pyogenes (group A strep)
- Staphylococcus aureus
- Haemophilus infuenza
- How are patients with peritonsillar abscess managed ?
- Referral to hospital under ENT for needle aspiration or surgical incision and drainage
- IV penicillin and metronidazole
- ENT surgeons can use dexamethasone to settle inflammation
- What are the components of a CURB 65 score ?
- Confusion
- Urea (>7mmol/L)
- RR > 30
- Systolic BP < 90 or diastolic < 60
- Age >65
- Risk factors for pyelonephritis
- Female sex
- Structural urological abnormalities
- Vesico-ureteric reflux
- DM
- MCC of pyelonephritis
- E.coli
- How is pyelonephritis investigated ?
- Urine dipstick
- Midstream urine for microscopy, culture and sensitivity testing is essential to establish causative organism
- Blood tests – FBC and inflammatory markers
- CT or ultrasound KUB
- How is Pyelonephritis managed ?
- Referral to hospital is symptoms of sepsis
- 1st line = Abxs for 7-10 days
- Absx Cefalexin, co-amoxiclav, trimethoprim or ciprofloxacin depending on cultures
- What is the sepsis 6 ?
- Out – lactate, blood cultures and urine output
- In – oxygen, abxs, IV fluids
- What could be DDs of pyelonephritis if pt does not respond to treatment ?
- Renal abscess
- Kidney stones
- Causes of transudate effusion (< 30g/L protein)
- HF
- Hypoalbuminemia (liver disease, nephrotic syndrome, malabsorption)
- Hypothyroidism
- Meig’s syndrome (benign ovarian tumours (+ ascites)
- Causes of exudate (> 30g/L protein)
- MCC is pneumonia
- TB
- Connective tissue disease (RA, SLE)
- Neoplasia e.g. lung cancer
- Pancreatitis
- PE
- What tests should be performed on a exudate effusion fluid ?
- Microscopy, culture, sensitivity and cytology
- What investigations would you order for an exudate pleural effusion ?
- CT thorax
- Ultrasound guided biopsy
- What question would you ask a 8 week pregnant pt with pain and bleeding ?
- Bleeding volume
- Bleeding colour e.g. fresh red or brown or dark
- Intensity of pain
- Location of pain
- Pregnancy symptoms
- What is a missed miscarriage ?
- Fetus is no longer alive but no symptoms have occurred
- What is a threatened miscarriage ?
- Vaginal bleeding with closed cervix and a fetus that is alive
- What is an inevitable miscarriage ?
- Vaginal bleeding with an open cervix
- What is an incomplete miscarriage ?
- Retained products of conception remain in the uterus after the miscarriage
- What is complete miscarriage ?
- A full miscarriage has occurred and there are no products of conception left in the uterus
- What is an anembryonic pregnancy ?
- A gestational sac is present but contains no embryo
- What are 3 key features looked at on a transvaginal US when investigating miscarriage ?
- Mean gestational sac diameter
- Fetal pole and crown-rump length
- Fetal heartbeat
- At what crown-rump length is a heartbeat expected ?
- 7mm
- If a heartbeat isn’t found in a 7mm pregnancy the scan is repeated after 1 week before confirming a non-viable pregnancy
- When is a fetal pole expected ?
- Once the mean gestational sac diameter is 25 mm or more
- Once 25 mm or more without a fetal pole the scan is repeated after 1 week before confirming an anembryonic pregnancy
- How is a potential miscarriage managed when less than 6 weeks ?
- Expectantly managed (providing no pain or complications e.g. previous ectopic)
- This means awaiting the miscarriage without investigation or treatment
- Repeat urine pregnancy test after 7-10 days and if negative confirm miscarriage
- How is a potential miscarriage managed when more than 6 weeks ?
- Referral to an early pregnancy assessment service
- Transvaginal US to confirm location and viability of pregnancy
- 3 options expectant, medical or surgical management
- When should a urine pregnancy test be performed post-expectant management decision ?
- 3 weeks after bleeding and pain have settled
- What does medical management of a missed miscarriage involve ?
- Oral misoprostol (prostaglandin analogue)
- 48 hours later vaginal, oral or sublingual misoprostol
- How is a incomplete miscarriage medically managed ?
- A single dose of misoprostol (vaginal, oral or sublingual)
- How do prostaglandins works ?
- Soften the cervix and stimulate uterine contractions
- How can miscarriage be managed surgically ?
- Vacuum aspiration (local as outpatient)
- Surgical management (under GA in theatre)
- Why is Rhesus status checked during the booking scan in pregnancy ?
- If a Rh -ve mother delivers a Rh +ve child a leak of fetal red blood may occur
- This causes anti-D IgG antibodies to form in the mother
- In later pregnancies these can cross the placenta and cause haemolysis in fetus
- Can also occur in the 1st pregnancy due to leaks
- How is Rhesus negative mothers managed ?
- NICE advises anti-D to non-sensitised Rh -ve mothers at 28 and 34 weeks
- What are Rhesus sensitising events ?
- Delivery of Rh +ve infant (alive or stillborn)
- Any termination of pregnancy
- Miscarriage if gestation > 12 weeks
- Ectopic if managed surgically
- External cephalic version
- Antepartum haemorrhage
- Amniocentesis, chronic villus sampling, fetal blood sampling
- Abdominal trauma
- What is the pathophysiology of hyperosmolar hyperglycemic state
- ↑ serum osmolality → osmotic diuresis → severe volume depletion
- What are precipitating factors for HHS ?
- Intercurrent illness
- Dementia
- Sedative drugs
- What is the timescale of the development of HHS ?
- Days
- Hence the metabolic and dehydration are worse than DKA
- What is typically seen that would suggest HHS ?
- Hypovolemia
- Marked hyperglycemia (>30 mmol/L)
- Significant raised serum osmolarity (> 320 mosmol/kg)
- No significant hyperketonemia (<3 mmol/L)
- No significant acidosis (bicarbonate > 15 or pH > 7.3)
- How is serum osmolarity calculated ?
- 2*Na + glucose + urea
- How is HHS managed ?
- NaCl 0.9% 0.5-1L/h
- Monitor potassium
- Insulin should not be given unless BM stops falling while giving IV fluids
- VTE prophylaxis
- How does hypokalemia present ?
- Muscle weakness and hypotonia
- On ECG – U waves, small or absent T waves, prolonged PR interval, ST depression and long GQ
- What signs may present on physical examination of a patient with hypokalemia ?
- Hypotension
- Irregular pulse
- Bradycardia or tachycardia
- Hypoventilation
- Lethargy
- Muscle fasciculations, tetany, decreased muscle power, diminished tendon reflexes
- Hypoactive bowel sounds
- RFs for Hodgkin’s lymphoma
- HIV
- EBV
- Classic features of Hodgkin’s lymphoma
- Lymphadenopathy
- B symptoms
- Mediastinal lymphadenopathy on chest x-ray
- How can Hodgkins lymphoma be investigated ?
- Normocytic anaemia
- Eosinophilia
- LDH raised
- Lymph node biopsy – Reed-Sternberg Cells
- What physical signs may be found on physical examination of a patient with Hodgkin’s lymphoma ?
- Cervical or axillary lymphadenopathy
- Hepatosplenomegaly or splenomegaly
- How does one convert from codeine to morphine ?
- Divide by 10
- How does one get from oral morphine to SC ?
- Divide by 2
- Then if need be calculate for 24 hours
- What is the ‘double effect doctrine’
- Sometimes it is permissible to cause a harm as a side effect of brining about a good result, provided the side effect was not the intended outcome
- What pharmacological options are available to a pregnant patient in pain ?
- Paracetamol
- Codeine may be useful where paracetamol is not
- Systemic NSAIDs are avoided from 20 weeks and contraindicated after 28 weeks
- In the last weeks of pregnancy which drugs should be avoided and why ?
- NSAIDs – risk of oligohydramnios
- Opioids – risk of neonatal respiratory depression
- What are the 4 common types of leukaemia
- Acute myeloid leukaemia
- Acute lymphoblastic leukaemia
- Chronic myeloid leukaemia
- Chronic lymphoblastic leukaemia
- What is a key identifying feature of acute lymphoblastic leukaemia ?
- Most common in children and is associated with Down syndrome
- What is a key identifying feature of chronic lymphoblastic leukemia ?
- Smudge cells
- CLL can transform (Richter’s transformation) into a high-grade B cell lymphoma
- Typically affects adults over 60 years
- What is a key identifying feature of chronic myeloid leukemia ?
- Philadelphia chromosome
- What is a key identifying feature of acute lymphoblastic leukemia ?
- Blast cells and Auer Rods