Document Sample

```					Metric system, Height &
Weight
Objectives
   Define the Apothecaries and the metric system.
   Review the household measurements.
   State the rationale for converting measurements
between systems.
   Explain the process of converting measurements
within one system.
   Summarize the process of converting
measurements between systems.
Objectives ( cont.)
 List the metric, apothecary, and household
equivalents.
 Practice converting measurements from
household or apothecary to the metric
system.
Metric System
   The basic measurement units are the meter,
liter and the gram.
Apothecary System
   Originated in England and is based on the
weight of one grain of wheat. The grain is
the basic unit of weight and the minim ( the
approximate volume of water that weighs a
grain) is the basic unit of volume.
Household System
   The least accurate of the three systems. It is
not ordinarily used to calculate dosage, but
only a reference to help the client. The units
of liquid measure are gtt, tsp, Tbsp,oz and
cup.
Height and Weight
 Assess the client’s ability to stand
independently
 Determine whether current clothing is
similar to that worn previously
PLAN:
Obtain accurate weight
Client incurs no injury
Client maintains privacy
Standing Scale
   Check identification band
   Place scale near client
   Calibrate scale to zero
   Ask client to remove shoes and to step on scale
and stand still
   Electronic Scale: Read weight after digital
numbers have stopped fluctuating
   Balance Scale:Slide the larger weight into the
notch most closely approximating the client’s
weight. Slide the smaller wt. to the so that the
balance rests is in the middle. Add 2 nos.
Wipe scale with appropriate
disinfectant
Cleanse hands
HEIGHT
 The height measuring rod is also found on s
standing weighing scale.
 The metal arm attached to the back of the
sclae is extended to gently rest on top of