Principles of Physics in
Nursing
Sarfraz Masih
RN, DCC, Post RN BScN, MScN
Principal,
p ,
Karachi King’s
g College
g of Nursing,
g, Karachi
Objecti es
Objectives
By the end of this unit,
unit the learners will be
able to
1. Discuss
Di the
th use off principles
i i l off physics
h i in i
nursing procedures.
z Introduction to the science of physics
z Relationship of physics to nursing
z Measurement and accuracy
Sarfraz Masih, Principal, KKCON, Karachi 2
Introduction to Science of
Physics
z Let’s begin with a question
z What is science?
Sarfraz Masih, Principal, KKCON, Karachi 3
Introduction to Science of
Physics
Science
z Science is a systemic way of acquiring
knowledge of natural world which is based
upon the belief that events in the world of
nature occur not capriciously but
according to an orderly.
Sarfraz Masih, Principal, KKCON, Karachi 4
Introduction to Science of
Physics
Physics
z Physics is a branch of science which is
related to study of how energy and matter
influence each other.
z Physics has marked impact upon how
modern, civilized man reasons, makes
judgments
d and
d arrives at decisions.
d
Sarfraz Masih, Principal, KKCON, Karachi 5
Relationship of Physics to
Nursing
z Nursing leaders describe nursing as a kind
of creative process in which the nurse
makes important decisions and judgments.
judgments
z Nurses’ interventions affect the health and
welfare of society members
members.
z So, it is very important that the nurse’s
d i i
decisions andd judgments
j d t should
h ld be
b
intelligent and responsible.
Sarfraz Masih, Principal, KKCON, Karachi 6
Relationship of Physics to
Nursing
z The science of Physics offers the nurse who
aspires to become an intervention
agent inspiration,
inspiration guidance,
guidance and challenge
as well as countless models of the types of
creative and critical thinking that have
accelerated human progress.
Sarfraz Masih, Principal, KKCON, Karachi 7
Have A Look!
z General Relationship of Some Physiologic
Processes Therapeutic Procedures and
Processes,
Apparatus to Certain Aspects of Physics
Sarfraz Masih, Principal, KKCON, Karachi 8
Measurement
Heat E g TPR
E.g.
Force
E.g. Steam
E.g. BP
Inhalation
Pressure
Motion
E.g. O-2
E.g. Centrifuge
Therapy
Aspects of
Physics
Work &
Gravity
Energy
E.g. Postural
E.g. Blood
Drainage
Molecular
Centre of
Physics
Gravity
E.g. Artificial Specific
p E g Lifting pt.
E.g. pt
Kidney Gravity
Sarfraz Masih,E.g.
Principal,Urine
KKCON, Karachi 9
Accuracy & Measurement
Accuracy
z Accuracy refers to the precision of the
measuring instrument used to make a
measurement.
Sarfraz Masih, Principal, KKCON, Karachi 10
Accuracy & Measurement
Measurement
z Measurement involves rules to assigning
numeric values to qualities of the an
object
z Characteristics
Ch t i ti off measurementt
z Numeric value
z Unit
z E.g. 15 meters
Sarfraz Masih, Principal, KKCON, Karachi 11
Accuracy & Measurement
Units
z Units have been devised to
z Communicate
C i t the
th meaning
i off the
th
measurement
z Achieve universal agreement about the
measurement we have the systems of
measurement.
measurement
Sarfraz Masih, Principal, KKCON, Karachi 12
Systems of Measurement
z English / British Measurement System
z Metric System
Sarfraz Masih, Principal, KKCON, Karachi 13
Systems of Measurement
English System Metric System
Unit of Foot (ft) Unit of Meter (m)
Length Length
U it off
Unit Pound
P d (lb) U it off
Unit Kil
Kilogram
Mass Mass (kg)
Unit of Second Unit of Second
Time Time
Sarfraz Masih, Principal, KKCON, Karachi 14
Unit of Length
English System Metric System
12 inches
i h 1 Foot
F t 10 millimeters
illi t 1 centimeter
ti t
3 Feet
F 1 Yard
Y d 10 centimeters
i 1 decimeter
d i
1,760 Yards 1 Mile 10 decimeters 1 meter
- - 10 meters 1 decameter
- - 10 decameters 1
hectometer
- - 10 1 kilometer
kil t
hectometers
Sarfraz Masih, Principal, KKCON, Karachi 15
Unit of Mass
z Definition of mass
z Definition of weight
Sarfraz Masih, Principal, KKCON, Karachi 16
Unit of Mass
Mass
z Refers to the quantity of matter that it
contains.
contains
Weight
z Refers to the gravitational pull of the
earth.
Sarfraz Masih, Principal, KKCON, Karachi 17
Unit of Mass
English System Metric System
24 grains 1 pennyweight 10 milligram 1 centigram
20 1 ounce 10 centigrams 1 decigram
pennyweights
12 ounces 1 pound 10 decigrams 1 gram
- - 10 grams 1 decagram
- - 10 decagrams 1 hectogram
10 hectograms 1 kilogram
- - 1,000 1 metric ton
kilograms
Sarfraz Masih, Principal, KKCON, Karachi 18
Unit of Time
z The standard unit of time in both English
and Metric Systems is mean (average)
solar second
z Mean solar day is the average time,
throughout
g 1 year,
y , that it takes the earth
to revolve once completely on its axis in
respect
p to the sun (24
( hours).)
Sarfraz Masih, Principal, KKCON, Karachi 19
Unit of Time
1 dayy 24 hours
1 hour 60 minutes
1 minute 60 seconds
1 day 86, 400 seconds
Sarfraz Masih, Principal, KKCON, Karachi 20
Application of Measurement in
Nursing
i (AMN)
( )
Liquid
medication
Fluids Pulse
Rate
Tempe
Tempe-
rature AMN Height
Volume Diet
Measurement preparation
Preparing
S l ti
Solution
Sarfraz Masih, Principal, KKCON, Karachi 21
Summarization
z Who
Wh is
i going
i tot summarize
i the
th session?
i ?
Sarfraz Masih, Principal, KKCON, Karachi 22
Sarfraz Masih, Principal, KKCON, Karachi 23
