GU surgery (Kane) Exam 3 Flashcards
Which of the following are true regarding Glomerular Filtration Rate (GFR)? (2)
a.) It is the best measure of glomerular function.
b.) Normal GFR is 150 mL/min.
c.) Severe insufficiency results in profound uremia and acidemia.
d.) You are asymptomatic until GFR drops by 60%
a.) It is the best measure of glomerular function.
c.) Severe insufficiency results in profound uremia and acidemia.
S2
Normal GFR is ___ mL/min.
A) 50
B) 75
C) 100
D) 125
D) 125
S2
At what point do symptoms usually become apparent in relation to GFR drop?
A) 10%
B) 25%
C) 50%
D) 75%
C) 50%
S2
Severe glomerular insufficiency may present with:
Select 3
A) Profound uremia
B) Acidemia
C) Alkalemia
D) Increased energy levels
E) Dehydration
F) Volume overload
A) Profound uremia,
B) Acidemia
F) Volume overload
S2
Which of the following are characteristic of moderate glomerular insufficiency? (Select 3)
A) Increased BUN/Creatinine levels
B) Anemia
C) Increased energy levels
D) Profound uremia
E) Acidemia
F) Decreased energy
A) Increased BUN/Creatinine levels
B) Anemia
F) Decreased energy – tired all the time
S2
What are the normal BUN levels?
A) 4-12 mg/dL
B) 8-18 mg/dL
C) 10-20 mg/dL
D) 5-15 mg/dL
B) 8-18 mg/dL
*BUN is not a good indicator of renal fx because can be affected by hydration status
S2
At what percentage of normal GFR does BUN typically elevate in kidney disease?
A) 25%
B) 50%
C) 75%
D) 90%
C) 75%
S2
Which of the following statements about creatinine are correct? (Select 3)
A) Normal range is 0.8-1.2 mg/dL
B) Creatinine levels vary with age
C) Creatinine is influenced by exercise and dehydration
D) Creatinine is influenced by gender
A) Normal range is 0.8-1.2 mg/dL
B) Creatinine levels vary with age
D) Creatinine is influenced by gender/sex
Normal BUN:Creatinine ratio is 10:1
S2
Which factors can influence Blood Urea Nitrogen (BUN) levels? Select 3
a.) Exercise
b.) Steroids
c.) Dehydration
d.) Diet
e.) Age
a.) Exercise
b.) Steroids
c.) Dehydration
S2
can be falsey elevated with dehydration
Which of the following are preoperative evaluations for patients with chronic renal failure (CRF)? Select 3
a.) Hypervolemia
b.) Acidosis
c.) Hyperkalemia
d.) Hypokalemia
e.) Hypovolemia
a.) Hypervolemia
b.) Acidosis
c.) Hyperkalemia
S3
What causes hypervolemia in patients with CRF?
A) Decreased fluid intake
B) Increased urinary output
C) Increased total body sodium and water
D) Decreased total body sodium and water
C) Increased total body sodium and water
Don’t want to give them more volume
S3
What symptom is precipitated by hemorrhage, transfusions, and metabolic acidosis in CRF patients?
A) Hypokalemia
B) Hyperkalemia
C) Hyponatremia
D) Hypernatremia
B) Hyperkalemia
Might decide on what NMD blocker you will/will not give since can elevate k
S3
In patients with CRF, acidosis is characterized by a decreased production of ___ and an elevated ___ as the disease progresses.
A) Ammonia/ bicarbonate
B) Sodium / ammonium
C) Sodium / anion gap
D) Creatinine/ anion gap
E) Ammonia/ anion gap
E) Ammonia/ anion gap
Starts off as a normal anion gap, but patient can become uremic which increases the anion gap over time.
S3
Which of the following are cardiac and pulmonary symptoms associated with CRF? Select 4
a.) Hypertension due to the RAAS
b.) Pulmonary edema
c.) Ventricular hypotrophy
d.) Ventricular hypertrophy
e.) Bradycardia
f.) Atherosclerosis
a.) Hypertension due to the renin-angiotensin system RAAS
b.) Pulmonary edema
d.) Ventricular hypertrophy
f.) Atherosclerosis
*Do they need more of a workup, get cardiology involved “tuned up” *
S3
What type of anemia is commonly seen in CRF patients? Select 2
A) Microcytic, hypochromic anemia
B) Normochromic, normocytic
C) Hemolytic anemia
C) Macrocytic anemia
D) Iron-deficient anemia
B) Normochromic -normal color
normocytic - normal size
D) iron-deficient anemia
S3
Hematologic symptoms in CRF patients include abnormal ___ aggregation and _____________ consumption.
A) Platelet/Red blood cell
B) White blood cell/Prothrombin
C) Platelet/ Prothrombin
D) Prothrombin/Protein
C) Platelet/ Prothrombin
S3
Which of the following drugs are of concern in patients with renal insufficiency due to their high ionization and elimination unchanged in the urine? (4)
a.) Muscle relaxants
b.) H2 receptor blockers
c.) Cholinesterase inhibitors
d.) Loop Diuretics
e.) Beta-blockers
f.) Calcium channel blockers
g.) Thiazide diuretics
a.) Muscle relaxants (Pancuronium)
b.) H2 receptor blockers
c.) Cholinesterase inhibitors
g.) Thiazide diuretics
S4
What is true about active metabolites of drugs like morphine, meperidine, ketamine, and midazolam of concern in patients with renal insufficiency?
A) They are highly lipid soluble.
B) They are excreted changed in urine.
C) They are metabolized by the liver.
D) They require smaller doses
D) They require smaller doses or avoidance altogether.
They are unchanged in the urine… meds will last longer
S4
Many antibiotics and drugs like ___ are of concern in patients with renal insufficiency.
A) Digoxin
B) Propofol
C) Zofran
D) Diltiazem
A) Digoxin
S4
The body eliminates lipid soluble drugs in a non-ionized state by either using ____________ and metabolism to excrete them as ________-soluble compounds.
A) Redistribution/ lipid
B) Absorption/water
C) Redistribution/water
D) Conjugation/lipid
C) Redistribution/water
S4
Most drugs are lipid soluble in a non-ionized state. Which of the following statements is true about their termination in patients with renal insufficiency?
A) Termination depends on renal excretion.
B) Termination does not depend on renal excretion.
C) Termination depends solely on hepatic metabolism.
D) Termination is not affected by renal insufficiency.
B) Termination does not depend on renal excretion.
S4
Which of the following statements is true about highly ionized drugs in renal insufficiency?
A) They are easily metabolized by the liver.
B) They are eliminated unchanged in the urine.
C) They have a reduced effect.
D) They are excreted through the lungs.
B) They are eliminated unchanged in the urine.
S4
Which conditions are associated with an increased risk of renal insufficiency? (Select 4)
A) Gastrointestinal diseases
B) Sepsis
C) Burns
D) Hyperthyroidism
E) CAD
F) Use of NSAIDs
B) Sepsis
C) Burns
E) CAD - cardiac/valve surgery
F) NSAIDs
*crush injury
**Toxins **and traumatic release of high levels of myoglobin, protein, potassium
S5
What is the approximate mortality rate of acute kidney injury (AKI)?
A) 25%
B) 35%
C) 50%
D) 75%
C) 50%
Patients die post-operative d/t preoperative co-morbidities
S5