Curren'S Math For Meds: Dosages & Sol
11th Edition
ISBN: 9781305143531
Author: CURREN
Publisher: Cengage
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![-
Lov
12pts)
w and p
1. Calculating flow and velocity (1pt)
Name:
Lana has a 2 meter long clear plastic pipe attached to a water tower. She puts a bucket under the pipe opening
and finds that 1L of water emerges in a minute. She puts a rubber ducky in the water tower, and when the ducky
enters the pipe she uses a stopwatch and determines that it takes the ducky 5 seconds to travel the length of the
pipe.
Calculate the flow of water in the pipe.
FLOW = */
L
9306121201
I min
Thin
bold st
bluow worl polici
ano d
Calculate the velocity of the water in the pipe.
Mis
2m
5Sec
- [0.4m/s]
2. Pressure Gradients. (2pts)
a.
Rank these in order of greatest to least flow. Note: each tube is the same length and diameter.
100
34
66
110
2
45
210
55
155
b. When air enters the pleural cavity (a condition called a pneumothorax), one of the effects is that the
pressure in the thorax increases, which increases the pressure in the venae cava (see figures below).
t
Normal:
Left Ventricle:
High Pressure
(~90mmHg)
Vena cava:
Low Pressure
(~3mmHg)
With Pneumothorax:
Left Ventricle:
High Pressure
(~90mmHg)
Vena Cava:
Higher than no
(~ 9mmHg)
Assuming no other changes in the system, how would an increase in pressure in the vena cava affect blood f
Answer in terms of pressure gradients.](https://content.bartleby.com/qna-images/question/8842f981-f686-49f3-89b8-b3886ea5dc18/39af5533-fe22-4ec8-9e1e-030b2bd531eb/41wkj3_processed.jpeg)
Transcribed Image Text:-
Lov
12pts)
w and p
1. Calculating flow and velocity (1pt)
Name:
Lana has a 2 meter long clear plastic pipe attached to a water tower. She puts a bucket under the pipe opening
and finds that 1L of water emerges in a minute. She puts a rubber ducky in the water tower, and when the ducky
enters the pipe she uses a stopwatch and determines that it takes the ducky 5 seconds to travel the length of the
pipe.
Calculate the flow of water in the pipe.
FLOW = */
L
9306121201
I min
Thin
bold st
bluow worl polici
ano d
Calculate the velocity of the water in the pipe.
Mis
2m
5Sec
- [0.4m/s]
2. Pressure Gradients. (2pts)
a.
Rank these in order of greatest to least flow. Note: each tube is the same length and diameter.
100
34
66
110
2
45
210
55
155
b. When air enters the pleural cavity (a condition called a pneumothorax), one of the effects is that the
pressure in the thorax increases, which increases the pressure in the venae cava (see figures below).
t
Normal:
Left Ventricle:
High Pressure
(~90mmHg)
Vena cava:
Low Pressure
(~3mmHg)
With Pneumothorax:
Left Ventricle:
High Pressure
(~90mmHg)
Vena Cava:
Higher than no
(~ 9mmHg)
Assuming no other changes in the system, how would an increase in pressure in the vena cava affect blood f
Answer in terms of pressure gradients.
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