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The anion abundant in extracellular fluid and important for gastric acid formation is:

sodium

chloride

calcium

potassium

Answer and Explanation

The Correct Answer is B

A. sodium: Sodium is the main extracellular cation, not an anion.

B. chloride: Chloride is the main extracellular anion and a component of hydrochloric acid in the stomach.

C. calcium: Calcium is a cation and not primarily associated with gastric acid formation.

D. potassium: Potassium is a major intracellular cation.

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Correct Answer is A

Explanation

A. "You did the right thing to bring Tyler in. Babies can become dehydrated quickly.": Infants are vulnerable to dehydration due to their high water content and immature kidneys.

B. "Going with very little food for 24 hours is not too long for anyone.": This dismisses the concern and doesn't address dehydration risk.

C. "Most of a baby's body is water, so he is probably very sick.": While high water content is true, this statement is vague and potentially alarming.

D. "Babies have a large water reserve to replace diarrhea.": Infants dehydrate quickly because they have low fluid reserves.

A. 75-95% B. 50-70% C. greater than 80% D. 30-40%

Correct Answer is B

Explanation

A. 75–95%: This range is too high for adults; it applies more to infants.

B. 50–70%: Adult body water typically comprises about 50–70% of total body weight.

C. Greater than 80%: This is excessive for an adult body water percentage.

D. 30–40%: This is too low for average adults.

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The anion abundant in extracellular fluid and important for gastric acid formation is:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is A

Explanation

The normal proportion of body water in an adult is which percentage of body weight?

Correct Answer is B

Explanation

A patient who is started on oral nourishment along with IV fluid has the following amounts entered on his I and O sheet: juice 120 ml, cereal 180 ml, tea 150 ml, urine 380 ml, IV fluid 1050 ml, and emesis 50 ml. His total oral intake was:

Intracellular fluid is found:

Potassium is responsible for:

In diuretic therapy, the nurse should monitor the patient for this electrolyte imbalance:

A patient's lab work shows a low potassium value. This patient has:

Antidiuretic hormone:

The lowest percentage of body fluids occurs in:

n addition to blood buffers, other body systems that work to keep the pH of the body within normal range are: