Cross blocks Flashcards
Sepsis 6
- Administer high flow oxygen.
- Take blood cultures
- Give broad spectrum antibiotics
- Give intravenous fluid challenges
- Measure serum lactate and haemoglobin
Measure accurate hourly urine output
Red flag sepsis symptoms
• Systolic BP <90mm or >40mmhg fall from baseline • MABP <65mmHg • HR >130 bpm • RR >25 per min AVPU = V, P, or U
Meningitis signs
non blanching rash, photosensitivity, stiff neck
How to reverse warfarin
- Stop warfarin
- IV Vit K - Takes 4-6h to work
- FFP - only if human prothrombin complex unavailable
Human prothrombin complex - reversal in 1 hr eg Bereplex. Give with Vit K
Anaphylaxis tx. how to inject adrenaline?
adrenaline - 500mcg
hydrocortisone - 200mg
chlorphenamine - 10mg
adrenaline can be repeated every 5 mins if necessary. Anterolateral aspect of middle third of thigh
Emergency dialysis indications
• Severe pH disturbance
• Resistant pulmonary oedema
Resistant hyperkalaemia
Causes of metabolic acidosis normal and raised anion gap
○ Normal - GI loss, renal tubular acidosis, drugs, addisons
Raised - lactate (shock, hypoxia, metformin), ketones (DKA), urate (renal failure), acid poisoning (salicylates, methanol)
Can you take blood from cnanula?
CANT TAKE BLOOD FROM CANNULA AFTER FLUSHING
Causes of neutrophilia
bacteria, inflammation, necrosis, steroids, malignancy
Causes of neutropenia
chemo, viral
Lymphocytsisus cayses
viral, TB,
Eosinophilia causes
allergy, parasites
pancytopenia causes
sepsis
Hemolysis markers
• Bilirubin
• Haptoglobin (decrease as it mops up Hb)
Red cell spherocytes
What Hb level do you give transfusion for?
below 80
Iron deficiency anemia markers
Target cells
Iron molecule carriers:
• Carried by transferrin in blood - goes up if iron deficient
• Stored in body as ferritin and hemosiderin - goes down if deficient
Causes of macrocytic anemia
Macrocytic:
• B12 deficiency
• Folate deficiency
Alcohol
Causes of microcytic anaemia
TAILS • Thalassaemia • Anaemia of chronic disease • Iron deficiency • Lead Sideroblastic anemia
Causes of normocytic anaemia
• Hemolytic (LDH, reticulocytes)
Bleeding
Pregnancy (physiological)
How to know if there is mixed anaemia?
MCV could be normal as its average
check RDW
Causes of hyponatraemia
• Hyponatremia + decrease vol - fluid loss - GI, burns, diuretics
• Hyponatremia + normal vol - SIADH (syndrome of inappropriate ADH)
Hyponatremia + increase vol - Heart, liver, kidney failure
Causes of hypernatraemia
• Dehydration
• IV fluids
Diabetes insipidus
Tx of hyperkalaemia
• Treat underlying cause
• Stabilise cardiac membrane - IV Calcium gluconate
• Short term K+ shift to intracellular - Combined insulin/dextrose infusion, + Salbutamol nebs
Long term removal of K - Calcium resonium, loop diuretics
Causes of hyperkalaemia
• K sparing diuretics
• Think Kidney damage
Rhabdomyolysis
Hypokalaemia causes
Causes with hypertension:
• Cushings
• Conns syndrome (primary hyperaldosteronism)
Liddles syndrome
Causes without hypertension:
• Diuretics
• GI loss
Renal tubular acidosis
tx of hypokalaemai
• Oral K+ supplement if mild
If severe give IV K+ SLOWLY
Bone profile of osteoporosis
All normal
Bone profile of osteomalacia
Low calcium and P
High ALP
Bone profile of pagets
Ca + P normal
Raised ALP
COPD exacerbation abx?
amox
CAP abx?
amox