Question

homeostasis worksheet
recognize normal parameters:
the normal range for blood glucose is 70 - 110 m/dl
the normal range for blood ph is 7.35 - 7.45
problem 3: a woman is being tested for diabetes mellitus. her blood glucose is measured over a period of time.

time	blood glucose m/dl
1 hour later	120
2 hours later	110
3 hours later	90
4 hours later	80
5 hours later	85

type of feedback ____
does the patient always remain within the normal range ____
does the patient have any apparent problems with glucose regulation? ____
problem 4: a man with kidney problems is being watched for acid base imbalance.

time	ph
9 am	7.46
12 pm	7.44
1 pm	7.42
6 pm	7.39
8 pm	7.37
10 pm	7.38
12 am	7.40
3 am	7.42

type of feedback ____
does the patient always remain within the normal range ____
does the patient have any apparent problems with acid base balance? ____

Explanation:

Problem 3

Step1: Check normal range for blood - glucose

The normal range for blood glucose is 70 - 110 mg/dl.

Step2: Analyze each data - point

At 0 hours, blood glucose is 100 mg/dl (within range). At 1 hour later, it is 120 mg/dl (outside range). At 2 hours later, 110 mg/dl (within range). At 3 hours later, 90 mg/dl (within range). At 4 hours later, 80 mg/dl (within range). At 5 hours later, 85 mg/dl (within range).

Step3: Determine feedback type

Since the body tries to bring the blood - glucose level back to normal after it goes high (120 mg/dl), it is negative feedback.

Step4: Check for glucose regulation problems

The patient's blood glucose went above the normal range once, indicating a possible minor problem with glucose regulation.

Problem 4

Step1: Check normal range for blood pH

The normal range for blood pH is 7.35 - 7.45.

Step2: Analyze each data - point

All the pH values: 7.45, 7.46, 7.44, 7.42, 7.39, 7.37, 7.38, 7.40, 7.42 are within the normal range.

Step3: Determine feedback type

The body is maintaining the pH within the normal range, which is negative feedback as it resists changes away from the normal value.

Step4: Check for acid - base balance problems

Since all values are within the normal range, there are no apparent acid - base balance problems.

Answer:

Problem 3

TYPE OF FEEDBACK: Negative feedback
Does the patient always remain within the normal range: No
Does the patient have any apparent problems with glucose regulation? Yes

Problem 4

TYPE OF FEEDBACK: Negative feedback
Does the patient always remain within the normal range: Yes
Does the patient have any apparent problems with acid base balance? No