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SI #4 : Jackson & Jois Diuretics and Vasodilators Flashcards | StudBud
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SI #4 : Jackson & Jois Diuretics and Vasodilators
SI #4 : Jackson & Jois Diuretics and Vasodilators
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1
True or False: when nitroprusside solutions are exposed to light, they turn from a green/blue to red/brown color.
False
True
2
A hallmark sign of ischemic heart disease on an EKG is an inverted t-wave.
True
False
3
What is the following group called?
Thiazide Ring
Thiazolamide
Sulfanilamide
Sulfasalazine
4
Which of the following groups lowers the activity of this drug?
C3 & 4 - Double Bond
C7 - Sulfanilamide
C2 - NH (Amine)
C6 - Chloro
5
Where does the majority of reabsorption happen in the Nephron?
Distal convoluted tubule
Descending loop of Henle
Proximal Tubule
Ascending loop of Henle
6
Which of the following is false?
Vasodilators (esp. CCBs) work to increase oxygen supply to the heart
Organic nitrates decrease oxygen demand by decreasing the heart rate
An improved lifestyle can help improve angina symptoms
Drug toxicity can cause angina
7
Osmotic diuretics primarily work in the ________________.
proximal tubule
ascending loop of Henle
distal convoluted tuble
collecting duct
8
Which of the following describes angina that results from insufficient blood flow due to atherosclerosis?
stable
unstable
silent
variant
9
The distal convoluted tubule & collecting duct are impermeable to water unless _____________ is present
sodium
ADH
renin
aldosterone
10
Nitroglycerin can be taken with phosphodiesterase inhibitors.
True
False
11
Ranolazine inhibits late Na channels, this shortens ______________ of the cardiac contractile cell action potential.
phase 0
phase 2
phase 4
phase 3
12
What changes does Spironolactone need to prevent it from binding to hormone receptors?
Opening the lactone ring at C17
Adding a C9 epoxy group
Changing the Sulfur to Oxygen at C7
Adding a double bond at C7
13
Which of the following disease states does
not
cause excessive demand on the myocardial muscle?
hypothyroidism
anxiety
Heart failure
arrythmias
14
Which of the following groups changes Aldosterone from an agonist to antagonist?
Adding a closed lactone ring at C17
The single bond at C6
The free OH at C9
The ketone group at C3
15
Ischemic heart disease results from insufficient blood supply and/ or increased O
2
demand in the myocardial muscle.
True
False
16
Which of the following is false?
Spironolactone can cause hypokalemia
Loop inhibitors are not self-limiting and very potent diuretics
Amiloride blocks ENaC channels in the distal tubules & collecting duct
Acetazolamide inhibits the carbonic anhydrase enzyme in the proximal tubule
17
Calcium channel blockers can be used for long-term angina prophlaxis
True
False
18
An overdose of nitroglycerin can lead to cyanide poisoning.
False
True
19
Ivabradine decreases __________ to decrease oxygen demand.
the heart rate
contractility
afterload
peripheral vascular resistance
20
How is the release of cyanide caused?
Exposure to sulfhydryl groups
Exposure to Light
Exposure to Trace Metals
Exposure to glutathione
21
What are the two reactions that occur to hydralazine?
Hydroxylation
Carboxylation
Acetylation
Esterification
22
Which of the following are potassium-sparing diuretics? (SELECT ALL THAT APPLY)
Acetazolamide
furosemide
spironolactone
Amiloride
23
What enzyme catalyzes the reaction below, and where does the reaction take place?
Carbonic Anhydrase, between the second arrow
Carbonic Anhydrase, between the first arrow
Carbonic Hydroxylase, between the first arrow
Carbonic Hydroxylase, between the second arrow
24
Loop inhibitors inhibit the Na+/K+/Cl symporter in the ascending loop of Henle & work to attenuate the TGF mechanism.
False
True
25
Which of the following is false?
Mannitol is a osmotic diuretic
Loop inhibitors can lead to metabolic alkalosis
Furosemide inhibits the Na+/K+/Cl_ symporter in the ascending loop of Henle
Thiazide diuretics are self-limiting diuretics
26
True or False: Osmotic diuretics require no metabolism and cause all electrolytes to freely flow into urine.
True
False
27
How do fast acetylators hydralazine dose need to be adjusted, compared to a normal acetylator?
Increase the dose
Decrease the dose
28
The major MOA of organic nitrate is to .....
decrease oxygen supply
decrease oxygen demand
increase oxygen demand
increase oxygen supply
29
Furosemide, a loop diuretic, has what quality to make it a good diuretic drug?
Highly Acidic
Weakly Acidic
Weakly Basic
Highly Basic
30
Carbonic anhydrase inhibitors have the potential to cause
metabolic alkalosis.
True
False
31
Based on the following structures, which binds with the highest affinity to carbonic anhydrase?
Structure 3
Structure 1
Structure 4
Structure 2