Foundation Skills

Chapter 7


Foundation Skills





Health Assessment


Patient Interview and Examination


The basic health assessment may include an interview and physical examination to determine functional, cultural, spiritual, and physical characteristics (Table 7-1). Basic health assessment may be the responsibility of many health care workers and is an ongoing process. The type and extent of assessment are determined by the role of the worker and the type of care being given. Some health care workers, such as the nurse assistant and licensed practical nurse, may collect data that will be analyzed and evaluated by another health care worker, such as the registered nurse.



The initial patient interview may include the health history, nature of the current complaint, and medication record. The medical or health history gathers subjective information about the patient’s health. The physical assessment uses techniques of inspection, auscultation, palpation, percussion, and smell (Table 7-2). Visual observations are used for inspection. Auscultation means listening to sounds, often with a stethoscope (Fig. 7-1). Palpation is using the hands to observe structures by touch (Fig. 7-2). Percussion is striking the body to assess the sound made (Fig. 7-3). The patient is positioned according to physician orders and for comfort during assessment (Fig. 7-4). Information that is gathered during the initial or admission health assessment is used to develop a nursing care plan (see Fig. II-3 in Appendix II on pp. 587−588). (See Skill List 7-1, Admitting, Transferring, and Discharging the Patient; and Skill List 7-2, Recording Observations, pp. 125126).



TABLE 7-2


Characteristic Odors*












































































Area Smell Possible Cause
Mouth Alcohol Drinking alcohol
  Bad breath (halitosis) Poor dental hygiene, gum disease
  Fruity, sweet Diabetes acidosis, medication
  Feces Intestinal obstruction
  Acid breath Peptic ulcer
  Rotten eggs, garlic Cirrhosis, medication
  Ammonia Kidney failure
Rectal area Feces Incontinence
Skin (under arms and breasts) Foul, body odor Poor hygiene, excessive sweating
  Stale urine Uremic acidosis
Skin (under cast) Musty Infection
Tracheostomy Sweet, fetid Bacterial infection (pseudomonas)
Urine Ammonia Urinary tract infection
  Foul Urinary tract infection
Vomit Feces Bowel obstruction
Wound site Feces Abscess
  Sweet, heavy Bacterial infection (pseudomonas)

*Odor may also be due to food eaten, medication, and hygiene practices.









Vital Signs


Vital signs or life signs are values that can be used to measure changes in body function, general health, and the response to treatment. Vital signs include blood pressure (BP) and temperature, pulse, and respiration (TPR). The value of vital signs is affected by many factors, including age, activity, nutrition, emotion, fitness, medication, and illness. Height (ht), weight (wt), and fluid balance or intake and output (I&O) also may be used to assess the patient.


Vital signs are ordered with different frequency depending on the type of service being provided. Common orders for assessment include twice a day (bid), three times a day (tid), four times a day (qid), or routinely once a day (qd). Vitals may be ordered at regular intervals such as every 4 hours (q4h) or every 15 minutes (q15m).






Blood Pressure


Blood pressure (BP) is a measurement of the force of the blood against the walls of the arteries as it circulates through the body. It reflects the effort the heart exerts to circulate the blood to the tissues. Two units or values for BP are measured: the maximum pressure at which the pulse can be heard (systolic) and the minimum pressure at which it is audible (diastolic). The systolic reading occurs while the ventricles of the heart are contracting. The diastolic reading occurs during relaxation of the ventricles. Instruments that are used to determine the blood pressure are the stethoscope and sphygmomanometer (Fig. 7-5). The stethoscope amplifies the sound. The sphygmomanometer is an inflatable cuff that uses air (aneroid) or a liquid to measure pressure. Automated cuffs may be used to measure BP using the radial artery of the wrist (Fig. 7-6). Mercury is no longer used in thermometers because of its environmental and safety risks, but sphygmomanometers containing mercury are still in use.




Blood pressure varies greatly among people. It is affected by the diameter and flexibility (elasticity) of the blood vessels, force of the heart contraction, and amount of blood in the vessels. Pressure on the area of the brain that controls BP can also change its value. Limits of the usual blood pressure for most individuals have been set. “Normal” blood pressure is commonly said to be 120/80 (systolic/diastolic) (Box 7-1). The range of BP is acceptable with a systolic pressure less than 119 and a diastolic pressure less than 80. (See Skill List 7-3, Taking a Blood Pressure, pp. 126–127).








Temperature


Temperature is the measurement of the balance between the heat produced and lost by the body. Several methods are used to measure temperature. They include the mouth (oral), armpit (axillary), rectum (rectal), ear (temporal), and by infrared radiation (Fig. 7-7). Temperature may be measured with the Fahrenheit or Celsius (Centigrade) scale. The normal reading for temperature depends on the location used to assess it (Table 7-3). An elevation of temperature (fever) may indicate infection or inflammation in the body.




Several types of thermometers are available for measuring temperature. The most common type is made of glass with an expandable liquid filling. Glass thermometers are designed differently for oral or rectal use. The bulb of the rectal thermometer is rounded to prevent injury to the tissues of the rectum. The tip of the stem of the rectal thermometer is red, and that of the oral thermometer is blue or silver for easy identification (Fig. 7-8). Rectal thermometers should never be used in the mouth. Mercury thermometers are not commonly used because of environmental and health hazards resulting from the possibility of spilling mercury. Electronic and disposable chemical thermometers are used. (See Skill List 7-4, Taking an Oral Temperature; Skill List 7-5, Taking an Axillary Temperature; Skill List 7-6, Taking a Rectal Temperature; and Skill List 7-7, Taking an Infrared Temperature, pp. 127–130).




Pulse and Respiration


Pulse is the heartbeat that can be felt (palpated) on surface arteries as the artery walls expand. The pulse rate is usually counted using the radial artery near the wrist, but it may be found in other locations (Fig. 7-9).



The rate of the heartbeat must be adequate to supply blood and its nutrients to all parts of the body. The pulse of an infant is significantly faster than that of an adult (Table 7-4). The normal adult pulse rate can range between 60 and 100 beats per minute. In addition to the rate, it is important to assess the rhythm and character of the pulse. A regular rhythm is evenly paced. An irregular pulse may be fast or slow or may skip beats. Character, describing the force of the pulse, may be strong, weak, bounding, thready, feeble, or fleeting. (See Skill List 7-8, Taking a Radial Pulse and Measuring Respiration, p. 130).



The pulse can be counted by listening to the heart through a stethoscope placed on the chest. This pulse is called an apical pulse (Fig. 7-10). The apical pulse may differ from the radial pulse in some conditions that affect the peripheral blood flow. (See Skill List 7-8, Taking a Radial Pulse and Measuring Respiration, p. 130).



One respiration includes the inspiration and expiration of a breath. The normal rate for respiration is more rapid in infants than adults (Box 7-2). The rhythm and character of respiration are important observations. The rhythm of respiration describes its regularity. Character describes the depth and quality of the sound. Respirations that are difficult to see may be assessed by feeling the rise (expansion) and fall (contraction) of the chest or by using the stethoscope to listen for the respiratory or breath sounds.




Height and Weight


Health professionals use charts that are developed by insurance companies to determine healthy weight (Fig. 7-11). The insurance companies determine at which weight for a specific height an individual is predicted to live the longest (Fig. 7-12). According to the National Heart, Lung, and Blood Institute, an ideal weight is having a body mass index between 18.7 and 24.9 (Box 7-3). More information about weight and nutrition may be found in Chapter 8.







Information Exchange


Basic Math


Many of the procedures performed by the health care worker include mathematics. For example, the conversion of medication dosages to calculate the correct dosage may be one of the responsibilities of the personnel administering them. The health care worker must be able to use the traditional, apothecary, and International System of Units (SI, metric) to measure time, temperature, distance, capacity (volume), and mass.


The place value or position of a digit or integer determines its value. For example, in the number 234, the two is in the hundreds place, the three is in the tens place, and the four is in the ones place. The number is the sum of two hundreds, three tens, and four ones, or 234. Numbers that can be shown as a whole number or a fraction are called rational numbers.


Addition and subtraction are methods for counting, resulting in a sum or difference between amounts. Multiplication and division perform addition and subtraction more quickly and result in a product or quotient. A fraction is a comparison of part of a whole to the entire unit. For example, image indicates that the quantity being considered is 1 of 4 equal parts of the whole. Fractions may be “reduced” by dividing the top number (numerator) and bottom number (denominator) by the same number. For example, image is equal to image. In health care, fractions or ratios often are used to calculate medications, determine temperature, or determine a schedule for the patient’s care (Box 7-4).


Apr 15, 2017 | Posted by in MEDICAL ASSISSTANT | Comments Off on Foundation Skills

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