Ross About the flow (Exam 4) Flashcards
A 25 year old male pt presents to your clinic with some mild (at the point) back pain. You ask him about the pain and he says it comes and goes. You notice he has a history of crohns disease. What is at the top of you Dx?
Nephrolithiasis- Due to the malabsorption with crohns pts are at a higher risk of elevated oxalate which is a primary ingredient in kidney stones
You have a 51 year old Pt who presents pale and diaphoretic, in pain and cant stand still, no visible in blood in urine and creatine level is normal. He states the pain started in his back and now radiates to the front. He has a history of recurrent gout. Which is the best imaging study for this pt?
A. X-ray
B. Abdominal ultrasound
C. non-contrast ct
D. no imaging necessary you know its a stone
C. Non-contrast CT
Stoned formed from gout show up radiotranslucent onX-rays
Which of the following put you at risk of developing a calcium oxalate or calcium phosphate stone?
A. Hyperparathyroidism B. Prolonged immobilization C. Absorptive problems of kidneys D. Low urine volume E. All of the above
E. All of the above
You have a Pt presenting with urosepsis. They recently were diagnosed with having kidney stones. Which type of stone is most likely to cause this?
A. Calcium phosphate
B. Uric acid stone
C. Calcium oxalate
D. Stag horn calculi
Stag horn calculi
You saw a patient about 1.5 weeks ago who you performed a non-contrast CT on because it was their first stone. You noticed the stone was about 2mm so you told them itll pass on its own. Well they are back cause it still hurts…of course it does. What imaging is best for following known stones?
A. Another non-contrast CT
B. Ultrasound
C. KUB xray
D. No imaging needed
C. KUB xrays are good for following stones
If you suspected a Kidney stone and you order an ultrasound what is it you’re looking for?
A. Dilated drainage system
B. The stone
C. Size of kidney
D. casted shadow
A. Dilated drainage system-if seen would indicate need for non-contrast CT
You are seeing a 15 year old female who presents with pain that radiates from the back to the front. You suspect a kidney stone. The Pt does not have a fever, hydronephrosis and has normal CR. What is your next step?
A. KUB
B. Tx with pain meds and d/c
C. Non-contrast CT
D. Ultrasound
B. Tx with Pain meds and send home
This is a young uncomplicated case of kidney stone in which they are able to go home and no imaging is needed
Rank from most common to least common area to find a kidney stone
A. Ureterovesicular junction, crossing of iliac artery, ureteropelvic junction
B. Ureteropelvic junction, ureterovesicular junction, crossing of iliac artery
C. Ureterovesicular junction, ureteropelvic junction, crossing of iliac artery
D. crossing of iliac artery, ureterovesicular junction, ureteropelvic junction
C.
What three things make a kidney stone complicated?
- Infection
- Intractable pain
- Obstruction as in it wont pass because of size
What radiologic sign indicates infection in the kidney?
Perinephric stranding
You are seeing a 28 year old pregnant female who not able to stand still, looks pale/diaphoretic and said she notices some blood in her urine. She is having back/flank pain. What is your next step?
A. Non-contrast CT
B. US looking for hydronephrosis
C. MRI
D. KUB xray
B. US looking for Hydronephrosis
If this is present you would consult urology and see what they want to do
True or false: pts with UTI and a Stone who show systemic signs (fever, abnormal vitals) needs admission to hospital
True
If you get a CBC on a Pt with a UTI and kidney stone and it comes back elevated but they are not showing any systemic signs do you admit to hospital?
No, but you treat them with cipro 500mg for 14 days anyway
WBC can be elevated because of the inflammation in the ureter caused by the stone
Which antibiotics can you use for infected kindey stones?
2nd gen cephalosporins (cefuroxime) and floroquinalone
What are some labs that will be helpful with determining how complicated or not a pt is with in regards to kidney stone?
UA: looking for presence of WBC
BMP: looking at Cr level
Out of the following pain management options which is preferred for kidney stones?
A. NSAIDS
B. IV lidocaine
C. IV narcotics
A. NSAIDs- they have a direct action on ureter by inhibiting prostaglandin synthesis
NSAIDS not to be given to pregnant Pts
If you diagnose a pt as having a 4mm sized stone and they do not have any systemic effects or co-morbidities how should you treat them?
A. Calcium channel blocker
B. Alpha blocker
C. manage pain (NSAID)
D. surgery
C. NSAIDs
If you diagnose a Pt as having a 7mm stone they have no systemic effects or co-morbidities how can you treat them?
A. Nifedipine
B. Tamsulosin
C. Tenolol
D. A and B
D. A and B
Nifedipine (CCB)- allows dilation of ureter to pass large stones
Tamsulosin (alpha blocker)- is considered superior though
Not helpful for stones less than 6mm
What 5 symptoms would make you admit a pt with a kidney stone to the hospital?
- Intractable pain
- urosepsis
- one or transplanted kidney with obstructive stone
- acute renal failure
- multiple co morbidities
An elderly pt appears to you with confusion, pain in their back, decreased urine output and extreme fatigue. You draw labs and they have an elevated WBC count and a lactate level of 3.5. You were thinking UTI but now what are you thinking?
A. Pyelonephritis w/bacteremia (urosepsis)
B. nephrolithiasis
C. Cystitis
D. Pyelonephritis
A. Pyelonephritis w/bacteremia (urosepsis)
What differentiates pyelonephritis from urosepsis is the presence of bacteremia with a lactate level greater than 2.5
What is the difference between pyelonephritis and a UTI
pyelonephritis is an infection of the upper tract where as a UTI is an infection of the lower tract
A pt presents with a Temp of 101.4 and flank pain. They have a fever so you’re not really thinking kidney stone per say. What test can you do which will allow you clinically diagnose?
A. UA
B. Ultrasounds
C. CVA tenderness
D. blood urine test
A. UA- if this comes back positive, according to ross all you need to clinically diagnose pyelonephritis is Fever, Flank pain, and Positive UA
Three complications of an UTI are?
- Acute bacterial nephritis
- Renal abscess
- emphysematous
A 45 year old female pt presents to you in the ED with dysuria, polyuria, and burning sensation when she pees. You remember from Dr. Ross lecture that you should check a UA on this pt. What can you expect to see?
A. Nitrites
B. Pyuria (WBC in urine)
C. Leukocyte esterase
D. All of the above
D. All of the above
- Having nitrites in the urine is a high positive predictive value as bacteria convert nitrates to nitrites when present. Most likely E.Coli
- Leukocytes are there to act on bacteria
What does epithelial cells in a UA mean?
Contamination
How would you treat someone with cystitis (UTI) who is pregnant? someone who isnt pregnant?
- Make sure no upper tract infection
- 3 days of Macrobid
- Quiniolone