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Clinical Biochem 1
first test
35
Biochemistry
Graduate
02/08/2015

Additional Biochemistry Flashcards

 


 

Cards

Term

1.  What is the major clinical test that is used to assess glomerular function and approximate glomerular filtration rate?

A.        GFR

B.        Creatinine clearance

C.        Water deprivation test

D.        Urinalysis

E.         Urine glucose test

Definition
B.        Creatinine clearance
Term

 

 2.  The ability to concentrate urine and reabsorb water into the blood is a major function of the?

A.        Glomerulus

B.        Renal tubule

C.        Urine

D.        Ureters

E.         Blood

Definition
B.        Renal tubule
Term

3.  In which condition would you most likely expect to find low urine levels of sodium, and production of a low volume of concentrated urine?

A.        Normal renal function

B.        Acute renal failure (pre-renal)

C.        Acute renal failure (renal)

D.        Acute renal failure (post-renal)

E.         Chronic renal failure

Definition
B.        Acute renal failure (pre-renal)
Term

4.  Anemia that is associated with chronic renal disease is caused by deficient production of which hormone?

A.        Erythropoietin

B.        AVP

C.        Aldosterone

D.        Renin

E.         Kalemian

Definition
A.        Erythropoietin
Term

5.  The presence of albumin proteins in the urine is a sign of

A.        Normal renal function

B.        Compromised renal tubule function

C.        Damage to renal glomeruli

D.        Kidney stones

E.         Renal failure

Definition
C.        Damage to renal glomeruli
Term

What is hypercalcemia?

 

a. excessive vitamin D

b. acidosis

c. vitamin D deficiency

d. occurs in the parathyroidism

e. a, b, & d

Definition
e. a, b, & d
Term

What is hypocalciemia?

 

a. excessive vitamin D

b. vitamin D deficiency

c. acidosis

d. occurs in the hypoparathryroidism

e. b & d

Definition
e. b & d
Term

How much phosphorus is in the bone?

 

a. 70%

b. 80%

c. 90%

d. 75%

e. 60%

Definition
b. 80%
Term

What is essential for hemoglobin?

 

a. calcium

b. phosphorus

c. iron

d. vitamin D

Definition
c. iron
Term

What is an acid?

 

a. pH lower than 7

b. pH higher than 7

Definition
a. pH lower than 7
Term
A strong base or acid will completely dissociate in water. True or False?
Definition
True
Term

What is the normal levels for H+ concentration?

 

a. 30-40 nmol/L

b. 35-45 nmol/L

c. 45-55 nmol/L

d. 25-35 nmol/L

 

Definition
b. 35-45 nmol/L
Term

True or False: Both equations are correct and can be used to calculate the pH?

pH = log (1/[H+])  or pH = -log [H+] 

Definition
True
Term

What is a buffer?

 

a. It removes H+

b. It is a long proces

c. Solution of a weak acid or base

d. all of the above

Definition
c. Solution of a weak acid or base
Term

 

Where does bicarbonate scavenging occur?

 

a. Renal Tubular Cells

b. Peritubular Capillary

c. Renal Tubular Lumen

 

 

Definition
b. Peritubular Capillary
Term
True or False. When H+ goes up so does the pH.
Definition
False. When H+ goes up, the pH goes down. and vice versa.
Term

 

Definitions to know:

Metabolic Acidosis: decrease in HCO3 (bicarbonate)

 

Metabolic Alkalosis: increase in HCO3 (bicarbonate)

 

Respiratory Acidosis: Increase in PCO2

 

Respiratory Alkalosis: Decrease PCO2

 

Definition
All true.
Term

True or False? H+ is proportion to PCO2 / [HCO3-]

 

Definition
True
Term

Calculating ABG.

1. Look at pH

2. Calculate the anion gap.[Na+]-[(Cl-)+(HCO3-)

3. Calculate the excess anion gap and add to bicarb level.

 

What do the numbers mean?

 

 

Definition

 

If sum > 30, underlying metabolic alkalosis

 

If sum < 23, underlying metabolic nonanion gap acidosis

 

Term

pH range from 7.35 to 7.45

PCO2 range from 35-45

Bicarb range from 22-26

 

What if pH is high, PCO2 is low and bicarb is normal?

Definition
Respiratory Alkalosis
Term

pH range from 7.35 to 7.45

PCO2 range from 35-45

Bicarb range from 22-26

 

What if pH is low, PCO2 is high and bicarb is high?

 

Definition
The primary disorder is respiratory acidosis with Metabolic alkalosis being the compensatory mechanism
Term

pH range from 7.35 to 7.45

PCO2 range from 35-45

Bicarb range from 22-26

 

What if pH is high, PCO2 is high and bicarb is high?

 

Definition

 

The primary disorder is metabolic with respiratory being the compensatory

 

Term
What has more water? ICF or ECF
Definition
ICF
Term

What is normal serum osmolality?

 

a. 200-250

b. 250-295

c. 275-290

d. 255-275

Definition
c. 275-290
Term
What does ADH aka AVP do?
Definition

It regulates water balance.

If one is hypotonic- ADH is suppressed.

If one is hypertonic- ADH is stimulatecd.

Term

What is normal sodium serum concentration?

 

a. 130-140

b. 135-145

c. 145-155

d. 155-175

Definition
b. 135-145
Term
Hyptonic Hyponatremia are then categorized into what three categories?
Definition

 

Hypovolemic

 

Hypervolemic

 

Euvolemic

 

Term

What is the normal K serum concentration?

 

a. 3.5-5.0

b. 2.5-4.0

c. 1.5-3.0

d. 3.0-5.5

Definition
a. 3.5-5.0
Term

 

 

What is this test called?


Cx =  (Ux) (V)

 

      Px

Defined:

 

Cx= urinary clearance of substance (ml/min)

 

Ux = concentration of x in the urine (mmol/L)

 

(ideally a 24 hour sample)

 

V = urine flow rate (ml/min)

 

Px = concentration of x in the plasma (mmol/L)

 

Definition
creatinine clearance.
Term

What is normal serum creatinine level?

 

a. 1-2 mg/dL

b. 0.6-1.2 mg/dL

c. 0.3-1 mg/dL

d. 53-106 umol/L

e. 40-97 umol/L

f. a&e

g. b&d

h. non of the above

 

Definition
g. b&d
Term

Matching

 

a. Erythrocytes

 

b. Leukocytes

 

c. Crystals

 

d. Casts


1. proteinuria, cell casts from kidney disease or infections
2. benign condition, kidney stone, infection, tumor

3. stones (uric acid, oxalate), UTIs, dehydration, diet
4. UTIs (usually RBCs present too)

 

Definition

a-2

b-4

c-3

d-1

Term

Matching

a. Failure with a Pre-Renal origin

b. Failure with renal origin

c. Failure with post-renal origin

 

1. low blood flow

2. obstruction of ureter by a stone

3. renal damage

Definition

a-1

b-3

c-2

Term

Matching:

 

a. ALT indicates:

b. Alk Phos indicates:

c. AST indicates:

 

1. Liver damage, post MI, and general celluar injury

2. Cholestasis and increased bone growth

3. Liver damage

Definition

a-3

b-2

c-1

Term
Myocardial Infarction has the mnemonic CAL, which helps remember the order in which the enzymes increase. What does it stand for?
Definition

Creatinine Kinase (CK)

Aspartate Aminotransferase (AST)

Lactate Dehydrogenase (LDH)

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