Evaluating Body Fluids & Electrolytes

Click on the correct answer




1 Mr. James is a 73 year old who was brought into your clinic complaining of severe muscular weakness and a 3 week history of diarrhea. Lab results are as follows: Na = 142 mEq/L; K = 2.1 mEq/L; Cl = 94 mEq/L; CO2 = 30 mEq/L. What other symptoms would you expect based upon this lab data?
Vomiting due to increased levels of potassium.
Cardiac arrhythmias due to decreased levels of potassium & chloride.
Respiratory distress due to the increased levels of CO2 and acidosis.
The Increased sodium will lead to dependent edema.

2 Edema may be caused by:
Increasing capillary permeability
Increasing hydrostatic pressure
Reducing plasma proteins
Increasing interstitial proteins
any of the above

3 As HCO3 shifts from the red blood cell to the blood plasma, it is expected that the plasma:
Sodium increases
Potassium increases
Chloride shifts into the red blood cell
pH decreases

4 Groups at risk for fluid imbalance include:
Elderly persons, thin women, & infants
infants, thin women, and obese persons
thin women, obese persons, & elderly persons
obese persons, elderly persons, & infants

5 Thirst is experienced when water loss equals ___% of body weight.
2
4
6
8
10

6 Dehydration may result in any of the following except:
an increased hematocrit
dry skin
tachycardia
postural hypertension

7 ___ can both cause muscle weakness.
Hypochloremia & Hypochondria
Hypokalemia & hyperkalemia
Hypomagnesemia & hyperphosphatemia
Hypercalcemia & hyponatremia

8 A twitch of the nose or lip when the facial nerve is tapped just below the temple is:
A positive sign for hypercalcemia
A negative sign for hypophosphatemia
Known as Chvostek's sign and indicates hypocalcemia
Known as Trousseaus's sign and indicates hypercalcemia

9 Ms. Jones is an elderly woman whose daughter reports that she frequently overuses magnesium and aluminum-containing antacids. This abuse can result in:
Hypomagnesemia
Hypophosphatemia
Hyponatremia
Hypokalemia

10 Sam Jacobs presents in your clinic complaining of weakness, dizziness, irritability, and intestinal cramps. Lab studies include: Na=138 mEq/L; K=6.8 mEq/L; pH = 7.38; HCO3=25 mEq/L; EKG with tall, peaked T waves. Mr. Jacob's symptoms are indicative of:
Hypernatremia
Hyponatremia
Hypercalcemia
Hyperkalemia
Hypokalemia