CMSRN Practice Test Questions with Verified Correct Answers

CMSRN Practice Test Questions with Verified
Correct Answers
ADH (Antidiuretic Hormone)

-Secreted by the pituitary gland

-Promotes reabsorption of water back into the blood

-Creates small amounts of dilute urine

-Released when osmolarity is high and when there is low ECF

-"Tap water hormone"

Aldosterone

-Secreted by the adrenal cortex

-Promotes reabsorption of sodium and water back into the blood

-Creates a small volume of urine with a low concentration

-Released when angiotensin is released and when there is high osmolarity

-"Salt water hormone"

Isotonic Fluids

-Normal saline (NaCl), Ringer's (NaClK+Ca++), and Ringer's lactate (NaClK+Ca++ and

Lactate)

-Extracellular only (1/3 vascular, 2/3 interstitial)

-Used in emergencies to improve profusion and oxygenation

Hypertonic Fluids

Hypertonic Fluids

Signs and Symptoms of Hypernatremia

, -Thirst

-Olgiuria

-Confusion, lethargy

-Seizures

-Coma

-High serum level

Signs and Symptoms of Hyponatremia

-Malaise

-N/V

-Confusion, lethargy

-Seizures

-Coma

-Low serum levels

PTH

-Increases levels of calcium in the blood by releasing calcium from bones, promoting

reabsorption via kidneys and increasing absorption from the small intestine

-Released when serum calcium levels are decreased

Signs and Symptoms of Hypocalcemia

-Positive Chvostek/Trousseau sign

-Muscle twitching/cramping

*Grimacing

*Carpopedal spasm

-Tetany

*Laryngospasm