GI/GU case wrap up Flashcards
What is the common ABX for cellulitis?
Keflex, Bactrim, Clindamycin, Doxycycline
All can be associated with C.diff
What are the High risk ABX associated with C.diff?
- Clindamycin
- Cephalosporins
- FQ
- Augmentin
What are the med risk ABX associated with C.diff?
Amox, Macrolides, Bactrim
What are the low risk ABX associated with C.diff?
- Aminoglycosides
- metronidazole
- vanco
- tetracyclines (DOXYCYCLINE)
If pt is admitted what should the plan be?
- IVF: Start with 2L and see if he responds
When is it enough?
- Vital signs stable
- making sure he is making urine
1cc per kg per hour
How much urine is he suppose to make?
1cc per kg per hour
What meds would you give him after admit?
- Antiemetics – Zofran 4mg IV Q4 hours
What are other two antimetics and why should you be caution
- Phenergan 6.25mg IV (caution liver, vaso-toxic)
- Reglan 10mg (caution GI bleed and renal impairment)
What should you give pt case 1 for pain?
any are fine – morphine, dilaudid, fentanyl
What ABX will you give for pt for case 1?
Ceftriaxone or Fluoroquinolone – Levofloxacin
Change if necessary after culture results
Whats the take home pt for case 1?
- Patients with AKI (regardless of their underlying, acute medical issues) should be closely monitored – more often than not in the hospital for fluid replacement
Monitor, repeast labs, improve Cr
What should you be careful with AKI
Be careful, don’t send home, monitor to make sure they bounce back.
REVIEW CHART!!!! GOING TO BE ON THE EXAM
What is one Dx you must keep in find for GERD?
Gastric CA
What is GERD?
The lower esophageal sphincter (LES) is designed to relax when food passes through the esophagus into the stomach, reflux occurs when the LES “tightness” decreases allowing for gastric contents to “reflux” back into the esophagus
Looses ability to stay tight, allows food to pass around.
What are the causes of LES pressure?
High fat and carbohydrate diet
ETOH
Tobacco
Acidic foods/drinks
Medications – CCB’s, nitrates
What are specific meds that causes GERD?
Medications – CCB’s, nitrates
What are the 4 med class of medications used in GERD?
- Antacids
- Sulcralfate
- H2 receptor antagonists (H2RTs)
- PPI
What is the MOA of Antacids for GERD?
- Increases the pH of the gastric refluxate by neutralizing gastric acid
- Thereby decreasing its potential to cause damage to the esophageal mucosa.
- Increase the LES tone through alkalinization of gastric contents.
What is the onset of Antacids?
Works really fast 15-30min but you have to do frequent dosing
When is antacids used?
- 1st for mild-moderate sx for GERD but not in pt with esophagitis.
- Dont decrease secretion, not prevention more symptomatic.
- 1st line for symptom and added to other meds
What kind of antacids should you be careful in pt with CKD?
- avoid mg and aluminum containing antacids
- ONLY use calcium-based
What is the MOA of sucralfate?
a mucosal coating agent that forms a protective barrier between esophageal tissue and gastric refluxate
Is Sucralfate approved for GERD?
No but approved for erosive disease and ulcer
Can you do mono therapy for sulcralfate?
No!! Not mono therapy
What does sucralfate contain that you should be careful with?
- Aluminum
What is the MOA for H2 receptor antagonists?
- Acid-suppressive agents that inhibit the action of histamine at the H2 receptor of the parietal cell
- Decreasing basal acid secretion
DECREASE ACID PRODUCTION
T/F All H2RTs are equally effective and all are available OTC
True, all the same!
When is H2 blockers dont work, should they try another one/brand?
No, since they are all the same they need to try PPI
H2 blockers are not helpful in what kind of GERD?
No helpful with true esophagitis but good for mild-mod GERD
Erosive or ulcer dz, H2 blocker is not strong enough
What is ADE of H2 blocker?
- HA and Hepatitis (rare)
- Safer than PPI
What is examples of H2 blocker?
- Cimetidine
- Famotidine
Whats the MOA of PPI
- irreversibly bind to the H+/K+-ATPase pump of the parietal cell
- thereby inhibiting the final step of acid secretion
T/F Both PPI and H2 blocker inhibit acid production
True
Does tolerance occur with PPI?
No, only with H2 blocker
Which is more effective at treating erosion/esophagitis? PPI or H2 blocker?
PPI
Whats the ADE for PPI?
- Increased risk of c-diff
- Increased fracture risk
- Vitamin B12 deficiency
- CKD
- Worsen PNA prognosis
What is one DDI with PPI?
(CYP2C19 inhibition)
Plavix, diazepam, phenytoin
What is one FDA warning with PPI and other meds?
Caution anticoags/anti-platelets with omeprazole
What are names of PPI?
- Omeprazolen (Prilosec)
- Pantoprazole (Protonix)
- Dexilant
- Lansoprazole (Prevacid)
What are good options for break-through gerd
Sodium bicarb anti-acids
or
H2 blocker (likely not erosive/ulcer so H2 is ok)
What are all the drug option for GERD in pregnancy
- Antacids – except those containing sodium-bicarb
- H2RTs are category B
- PPIs are category B with the exception of omeprazole which is category C
Which is one PPI that is category C?
Omeprazole which is category C
T/F If pt has _____(3), they have to be on PPI
- H.pylori
- GIB
- Erosive esophagitis
Our case 2 GERD pt is on plavix, which is a DDI, what are other PPI she can take?
Prevacid and Protonix ok
What are the goals for pt with Renal disease?
- Start ACE-I and ARB (Both are equally effective)
- Avoid nephrotoxic drugs
- Avoid drugs/dc that contribute to renal impairment
What are the drugs that contribute to renal impairment?
- Metformin
- Cetirizine
- Vitamin C & D
- HCTZ
If pt is DM with kidney disease, whats A1c goal?
~7% within 6 months
How can we decrease CV risk factors for pt with CKD?
- Control HTN with in 2-4 weeks
- Hyperlipidemia
- Obesity
- Smoking
Whats one of the most common problems with initiation meds in CKD?
Inappropriate drug selection or dosing of medications with renal elimination pathways.
T/F We must
Know our patients GFR to evaluate all medications
Is Naproxen CI in DKD?
Yes
Why is naproxen CI in CKD?
Nephrotoxic and worsens renal impairment
At what lvl of Crcl should naproxen be used with caution?
<60mL/min
What lvl of Crcl is naproxen CONTRAINDICATED
<30mL/min
Naproxen is CI in those that are on _____? (3)
- Diuretics
- ACE-I
- ARBS
T/F Metformin DOES NOT HAVE the potential for toxicity with in patients with a decreased GFR
False, it does!
At what GFR should metformin
- reduced
- discontinued
Reduced at GFR 45
D/c <30
What should you do in pt before starting metformin?
Assess GFR prior to initiation of metformin and at least annually in patients using metformin.
Whats the MOA for metformin?
- inhibits the production and release of glucose from the liver (gluconeogenesis and gluconeolysis)
- enhances insulin sensitivity in muscle and fat.
Metformin is safe in pt as long as their GFR is ___?
> 45, if its lower then d/c
How much will metformin decrease A1c by?
1-2%
T/F metformin is weight neutral
True
What is recommended addition to metformin?
Addition to lifestyle intervention as initial therapy
What is the max dose of metformin?
2000 mg per day, divided 2-4 doses
What is the mc s/e of metformin?
GI intolerance
When is metformin contraindicated? (not related to GFR lvls)
- Hepatic impairment
- Cardiac failure
- Increase risk of lactic acidosis
What are example of sulfonylureas?
glyburide, glimepiride, glipizide
What is the MOA of Sulfonylureas?
- Insulin secretagogues that promote pancreatic β-cell secretion of insulin and potentiate insulin action on extra-hepatic tissue.
- Increase peripheral glucose use, decrease hepatic gluconeogenesis, and increase the number and sensitivity of insulin receptors.