If the [HCO -] / [CO ] is 20/2, what is the situation?

Correct Answer: A

Rationale: Step-by-step rationale: 1. Calculate the ratio: [HCO3-] / [CO2] = 20/2 = 10 2. Normal ratio is 20/1, so a ratio of 10 indicates a decrease in HCO3-. 3. Decrease in HCO3- leads to increased acidity, indicating acidosis. 4. Since the issue is not related to CO2 levels, it is uncompensated respiratory acidosis. Summary: - Choice A is correct due to the low [HCO3-] / [CO2] ratio indicating acidosis. - Choices B, C, and D are incorrect as they do not match the given scenario of respiratory acidosis.

Correct Answer: B

Rationale: Step 1: The internal pool includes various substances like nutrients, waste products, and ions. Step 2: Substances can also be removed through metabolic processes like oxidation or conversion. Step 3: Excretion is not the sole method; other ways include sweat, breath, or shedding skin. Step 4: Therefore, the statement that excretion is the only way for substances to be removed from the internal pool is false.

Correct Answer: B

Rationale: The correct answer is B: FALSE. Estrogen does not directly affect body water composition. The main reason women generally have more body water than men is due to differences in body composition, such as higher body fat percentage in women. Estrogen primarily influences fat distribution, not body water levels. Choices A, C, and D are incorrect because estrogen's effect on adipose tissue does not directly impact body water content in individuals.

Correct Answer: A

Rationale: 1. Synovial fluid is a type of transcellular fluid that surrounds the joints - TRUE. 2. Synovial fluid is a clear, viscous fluid found in the cavities of synovial joints. 3. It provides lubrication, nourishment, and shock absorption to the joints. 4. It is produced by the synovial membrane and helps reduce friction between the joint surfaces. 5. Therefore, the statement is accurate, making choice A the correct answer.

Correct Answer: B

Rationale: Step 1: The ICF (Intracellular Fluid) is the fluid inside the cells, and the ECF (Extracellular Fluid) is the fluid outside the cells. Step 2: Not all fluid that enters or leaves the ICF must pass through the ECF. There are mechanisms such as osmosis and active transport that allow for direct movement of fluid in and out of the cells. Step 3: Therefore, it is not true that all fluid entering or leaving the ICF must pass through the ECF, making the correct answer B: FALSE. Summary: Choice A is incorrect because it wrongly states that all fluid must pass through the ECF. Choices C and D are not applicable as they do not provide any relevant information.