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Water and electrolytes

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

Aldosterone acts by promoting:

a)

excretion of potassium

b)

Reabsorption of potassium

c)

Reabsorption of sodium

d)

Excretion of sodium

e)

Reabsorption of sodium and excretion of potassium

2.

ANP is produced by the atrial wall in response to

a)

Aldosterone

b)

Decreased BP

c)

Kinins

d)

Increased intravascular volume

3.

When compared to ECF, ICF has:

a)

low osmolarity

b)

less chloride

c)

greater volume

d)

more glucose

4.

Which of the following is not a cause of hypokalemia?

a)

Renal tubular acisos

b)

Crush injuries

c)

Cushing's syndrome

d)

GI losses

e)

Insulin administration

5.

A patient with untreated Adrenal insufficiency is liable to have:

a)

Hypomagnesemia

b)

Hypokalemia

c)

Hyponatremia

d)

Hypocalcemia

6.

Which disorder may be caused by insufficient water intake , insufficient sodium excretion due to hormone imbalance ,renal failure ,corticosteroids , increased water loss due to fever , hyperventilation, increased metabolism ,and dehydration due to sweating , vomiting or diarrhea

a)

hypocalcemia

b)

hypernatremia

c)

hyponatremia

d)

hypervolemia

7.

A patient is diagnosed with small cell carcinoma of the the lung. He presents to the emergency room with confusion and lethargy. His serum electrolytes show hyponatremia and urine osmolality is 140 Osm/kg. Which of the following is the most likely diagnosis in this patient?

a)

SIADH

b)

Cushing's syndrome

c)

Addison's disease

d)

Hyperthyroidism

8.

When treating hyperglycemia with insulin, potassium is administered concomitantly. What is the effect of insulin on potassium?

a)

Keeps potassium from being excreted in the urine

b)

neutralizes potassium

c)

Moves potassium into the cells

d)

Moves potassium out of the cell

9.

A 50 year old man is started on a loop diuretic as a part of treatment of his congestive cardiac failure. Loop diuretics may cause:

a)

Hyperkalemia

b)

Hypokalemia

c)

Hypernatremia

d)

Hypermagnesemia

10.

While planning care for elderly individuals, it is essential to remember that the elderly are at a higher risk for developing dehydration because they have a(n):

a)

Higher total body water volume

b)

Increased tendency towards developing edema

c)

Increase in thirst

d)

Decreased muscle mass