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Name: Miriam E. Quintuna

Exercise 10: Acid-Base Balance: Activity 4: Respiratory Responses to Metabolic Acidosis and Metabolic Alkalosis Lab

Report

Pre-lab Quiz Results

You scored 100% by answering 4 out of 4 questions correctly.

1. An increase in metabolic rate (without compensation) would result inYou correctly answered: a. more carbon dioxide in the blood.

2. Excessive vomiting results in

You correctly answered: c. loss of acid, metabolic alkalosis.

3. Which of the following is not  acidic?

You correctly answered: d. antacids

4. Which of the following decreases the rate of metabolism?

You correctly answered: b. lowered body temperature

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Experiment Results

Predict Question:

Predict Question 1: What do you think will happen when the metabolic rate is increased to 80 kcal/hr?

Your answer : a. metabolic acidosis

Predict Question 2: What do you think will happen when the metabolic rate is decreased to 20 kcal/hr?

Your answer : d. Breaths per minute will decrease.

Stop & Think Questions:

The tidal volume and breaths per minute increased with increased metabolism because

You correctly answered: b. there is more carbon dioxide being formed.

Which body system is compensating for the metabolic alkalosis?

You correctly answered: c. respiratory

Experiment Data:

Metabolic Rate

(kcal/hr)

BPM (breaths/min) Blood pH PCO2 [H+]

 in Blood

[HCO3-

 in Blood50 15 7.40 40 40 24

60 17 7.37 45 47 20

80 21 7.26 55 63 14.5

40 13 7.43 37 38 26

20 9 7.52 31 32 30

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Post-lab Quiz Results

You scored 100% by answering 4 out of 4 questions correctly.

1. What happened to the breathing when metabolism was increased?

You correctly answered: d. The breaths per minute and the tidal volume increased.

2. Which of the following is not  a cause of metabolic acidosis?

You correctly answered: b. constipation

3. If PCO2 in the blood increases, then

You correctly answered: a. [H+ ] increases and pH decreases.

4. Which of the following values increased with decreased metabolism?

You correctly answered: d. pH and [HCO3- ]

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Review Sheet Results

1. Describe what happened to the blood pH when the metabolic rate was increased to 80 kcal/hr. What body system was

compensating? How well did the results compare with your prediction?

Your answer:

Respiratory system compensated with acidosis, as predicted.

2. List and describe some possible causes of metabolic acidosis.Your answer:

Highly intensive exercise.

3. Describe what happened to the blood pH when the metabolic rate was decreased to 20 kcal/hr. What body system was

compensating? How well did the results compare with your prediction?

Your answer:

Respiratory system compensated, as predicted.

4. List and describe some possible causes of metabolic alkalosis.Your answer:

High concentration of HCO3- cause of dehydration. Excessive removement of acid by aldosterone.