LPN IV Therapy Exam, Answered
(Ch 01 Quiz) 1. What percentage of body weight is attributed to ECF?
A. 5%
B. 10%
C. 20%
D. 40% - C. 20%
• ECF makes up about 20% of body weight.
(Ch 01 Quiz) 2. Which type of solution raises serum osmolarity and pulls fluid and
electrolytes from the intracellular and interstitial
compartments into the intravascular compartment?
A. Isotonic
B. Solvent
C. Hypotonic
D. Hypertonic - D. Hypertonic
• The higher osmolarity of hypertonic solutions draws
fluid into the intravascular compartment.
(Ch 01 Quiz) 3. Which electrolyte participates in neurotransmitter release at
synapses?
A. Calcium
B. Magnesium
C. Phosphorus
D. Chloride - A. Calcium
• Calcium participates in neurotransmitter release at synapses.
(Ch 01 Quiz) 4. Intravascular infections can be prevented by which of the
following precautions?
A. Securing the venous access device with gauze
B. Changing insertion sites according to facility policy
C. Applying the tourniquet 6" to 8" (15 to 20 cm) above the insertion site
D. Washing your hands after inserting the device - B. Changing insertion sites
according to facility policy
, • Intravascular infection can be prevented by alternating insertion sites.
(Ch 01 Quiz) 5. When capillary blood pressure exceeds colloid osmotic pressure:
A. water and diffusible solutes leave the capillaries and circulate into the ISF.
B. water and diffusible solutes return to the capillaries.
C. there's no change.
D. intake and output are affected. - A. water and diffusible solutes leave the
capillaries and circulate into the ISF.
• When capillary blood pressure exceeds colloid
osmotic pressure, water and diffusible solutes leave the capillaries and circulate
into the ISF. When capillary blood pressure falls below colloid osmotic pressure,
water and diffusible solutes return to the capillaries.
(Ch 04 Quiz) 1. I.V. medication may be indicated when:
A. the patient needs a slower therapeutic effect.
B. the medication can't be absorbed by the GI tract.
C. the medication given orally is stable in gastric juices.
D. the medication isn't irritating to muscle tissues. - B. the medication can't be
absorbed by the GI tract.
• I.V. medication has a rapid effect and may be indicated if the medication can't be
absorbed by the GI tract, is unstable in gastric juices, or causes pain or tissue
damage when given I.M. or subQ.
(Ch 04 Quiz) 2. What's the preferred route of medication in emergencies?
A. I.V.
B. SubQ
C. I.M.
D. Oral - A. I.V.
• The I.V. route allows therapeutic levels to be achieved rapidly.
(Ch 04 Quiz) 3. Loading dose, lock-out interval, and maintenance doses are
basic to:
A. I.V. therapy.
B. PCA therapy.
C. continuous I.V. morphine drips.
(Ch 01 Quiz) 1. What percentage of body weight is attributed to ECF?
A. 5%
B. 10%
C. 20%
D. 40% - C. 20%
• ECF makes up about 20% of body weight.
(Ch 01 Quiz) 2. Which type of solution raises serum osmolarity and pulls fluid and
electrolytes from the intracellular and interstitial
compartments into the intravascular compartment?
A. Isotonic
B. Solvent
C. Hypotonic
D. Hypertonic - D. Hypertonic
• The higher osmolarity of hypertonic solutions draws
fluid into the intravascular compartment.
(Ch 01 Quiz) 3. Which electrolyte participates in neurotransmitter release at
synapses?
A. Calcium
B. Magnesium
C. Phosphorus
D. Chloride - A. Calcium
• Calcium participates in neurotransmitter release at synapses.
(Ch 01 Quiz) 4. Intravascular infections can be prevented by which of the
following precautions?
A. Securing the venous access device with gauze
B. Changing insertion sites according to facility policy
C. Applying the tourniquet 6" to 8" (15 to 20 cm) above the insertion site
D. Washing your hands after inserting the device - B. Changing insertion sites
according to facility policy
, • Intravascular infection can be prevented by alternating insertion sites.
(Ch 01 Quiz) 5. When capillary blood pressure exceeds colloid osmotic pressure:
A. water and diffusible solutes leave the capillaries and circulate into the ISF.
B. water and diffusible solutes return to the capillaries.
C. there's no change.
D. intake and output are affected. - A. water and diffusible solutes leave the
capillaries and circulate into the ISF.
• When capillary blood pressure exceeds colloid
osmotic pressure, water and diffusible solutes leave the capillaries and circulate
into the ISF. When capillary blood pressure falls below colloid osmotic pressure,
water and diffusible solutes return to the capillaries.
(Ch 04 Quiz) 1. I.V. medication may be indicated when:
A. the patient needs a slower therapeutic effect.
B. the medication can't be absorbed by the GI tract.
C. the medication given orally is stable in gastric juices.
D. the medication isn't irritating to muscle tissues. - B. the medication can't be
absorbed by the GI tract.
• I.V. medication has a rapid effect and may be indicated if the medication can't be
absorbed by the GI tract, is unstable in gastric juices, or causes pain or tissue
damage when given I.M. or subQ.
(Ch 04 Quiz) 2. What's the preferred route of medication in emergencies?
A. I.V.
B. SubQ
C. I.M.
D. Oral - A. I.V.
• The I.V. route allows therapeutic levels to be achieved rapidly.
(Ch 04 Quiz) 3. Loading dose, lock-out interval, and maintenance doses are
basic to:
A. I.V. therapy.
B. PCA therapy.
C. continuous I.V. morphine drips.
