Which of the following is a disaccharide?

ATI LPN

ATI LPN Test Bank

A. Glucose B. Lactose C. Fructose D. Galactose

Correct Answer: B

Rationale: Lactose is a disaccharide (glucose + galactose), while the others are monosaccharides, making B correct.

Vit K is necessary for?

A. Bone and teeth formation B. Integrity of skin and mucous membrane C. Blood coagulation D. Formation of RBC

Correct Answer: C

Rationale: Vitamin K is essential for blood clotting (coagulation), making C correct.

Which of the following individuals would have the largest percentage of their bodyweight as water?

A. a small 7-year-old female B. a lean 35-year-old male athlete C. a chunky 52-year-old male athlete D. a healthy 88-year-old male

Correct Answer: A

Rationale: Children, like a 7-year-old female, have the highest percentage of body water (around 70-75%) due to lower fat content.

Serum electrolyte concentrations are most often expressed as

A. mg% B. mmHg C. mg/dl D. mEq/L

Correct Answer: D

Rationale: mEq/L is the standard unit for expressing electrolyte concentrations, reflecting ionic charge.

Renin is released by the

A. lungs B. kidney C. spleen D. liver

Correct Answer: B

Rationale: Renin is secreted by the juxtaglomerular cells of the kidney in response to low blood pressure or sodium levels.

$89/ 30 days

$150/ 90 days