Additional Cards Flashcards
Which syndrome is most correlated with Hep C
MPGN
Difference between HCO3 movement in PT and TAL
PT - basolateral membrane has a HCO3 Cl symporter
TAL - HCO3 and Cl transporter is an exchanger
Say whether the following stimulate or reduce bicarbonate reabsorption/acid excretion: aldosterone/AII, volume expansion, hypokalemia
Aldosterone/AII = stimulates acid excretion
Volume expansion = reduces acid excretion
Hypokalemia = stimulates acid excretion
Winter’s formula
pCO2 = (1.5*HCO3) + 8
An acute change in pCO2 of 10 should align with a pH change of:
0.08
How to get the proteinuria in a day
Divide urine protein by urine creatinine -> g/day
Creatinine clearance equation
UcrV/Pcr
What is a middle-of-the-road specific gravity
1.010 - 1.015 -> 250-300 serum osm
Two main ethical principles that come up in transplant
Truth-telling for the blameless medical excuse
Non-maleficence for the harm you are inflicting on the living donor
Main things that cause a metabolic acidosis through loss of bicarbonate
Diarrhea, and proximal (Type II) RTA
Main mechanisms of metabolic acidosis that do not include losing bicarbonate
Kidneys not excreting acid - CKD, distal RTA (Type I, which can lead to kidney stones)
H+ intoxication
Lactic or ketoacidosis
What DURHAM stands for
Diarrhea Ureteral diversions RTA (Type 2/proximal) Hypocapnia Acetazolamide/Ampho B Mineralocorticoid deficiency (RTA Type 4)
What offsets what in different types of metabolic acidosis (if just one)
Elevated anion gap -> bicarbonate is smaller and unmeasured anion is larger in equal amount
Non-elevated -> bicarbonate smaller and chloride higher to compensate
What is a normal body temperature in Celcius
36.1-37.2
Main types of RTA
- Type II first - proximal - patient not fully reclaiming all the bicarbonate -> so you have a systemic acidosis. Common causes are multiple myeloma and medications. Hypokalemia.
- Type I - distal - defect in pumping out hydrogen effectively - also going to make you acidotic. Hypokalemia
- Type IV RTA - systemic acidosis with hyperkalemia - not enough aldosterone - diabetic patients
Definition of high value prescribing
providing simplest medication regimen that minimizes physical and financial risk while achieving the best outcome
How to decrease out of pocket costs for prescribing
“GOT MeDS”
GENERICS: prescribe when possible; educate patients on safety/efficacy
ORDERING IN BULK: 3-month supplies of drugs from pharmacy or by mail
THERAPEUTIC ALTERNATIVES: OTC meds; cheaper meds in same class
MEDICATION REVIEW: regularly review med list; remove unnecessary meds
DISCOUNT DRUGS: $4 drugs (Walmart, Target, etc); discount cards
SPLITTING PILLS: prescribe higher dose and advise patients to split pills
Difference between tonicity and osmolality
Tonicity excludes ineffective osmols, while osmolality includes them
Listed approach to hyponatremia and treatment decision criteria
1) Osmolar status (2Na + Gl/18 + BUN/2.8)
2) volume status (clinical)
3) ADH present (Uosm > 100)
4) ADH appropriate (yes if serum osm high, secondarily low effective circ volume)
5) Treatment:
Volume depletion -> Saline
Hypoosmolarity with euvolemia or hypervolemia -> water restriction
Other things to do with hypervolemia -> diuretic
If having symptoms -> hypotonic saline
Speed to increase SNa
Not more than 8 Meq/L/day
What urine osm can tell you about hypernatremia
If low - DI
If high - likely losing more water through insensible losses and GI than you are taking in (decreased H20 intake)
Main categories of hypertonic hypernatremia
- Hypertonic Na gain (drinking sea water)
- Polyuric (increase in clearance of free water) - solute diuresis (glucose) or pure H20 diuresis (DI)
- non-polyuric (decrease in clearance of free water) - hypodipsia, fever, sweating, GI losses
Differences between solute and water diuresis
Solute diuresis starts with a high Uosm at a low flow rate, and gets lower as it speeds up because there is less time to reabsorb water - end at about 300-350 uOsm
Water diuresis starts low and gets higher as urine flow speeds up because there is less time to remove solutes - ends at about 150-200
Postural/orthostatic proteinuria
Proteinuria in upright position but not supine, more common in adolescents