Assessment and investigation of patients’ problems

Chapter 1 Assessment and investigation of patients’ problems






INTRODUCTION


The aim of assessment is to define the patient’s problems accurately. It is based on both a subjective and an objective assessment of the patient. Without an accurate assessment, it is impossible to develop an appropriate plan of treatment. Equally, a sound theoretical knowledge is required to develop an appropriate treatment plan for those problems that may be improved by physiotherapy. Once treatment has started, it is important to assess its effectiveness regularly in relation to both the problems and goals.


The system of patient management used in this book is based on the problem-oriented medical system (POMS) first described by Weed in 1968. This system has three components:






The POMR is now widely used as the method of recording the assessment, management and progress of a patient. It is divided into five sections, as shown in Figure 1.1 and summarized below.










DATABASE


The database contains a concise summary of the relevant information about the patient taken from the medical notes, together with the subjective and objective assessment made by the physiotherapist. The format may differ from hospital to hospital, but will contain the same information.


The first part contains the patient’s personal details including name, date of birth, address, hospital number, and referring doctor. It may also contain the diagnosis and reason for referral. The second part summarizes the history from the medical notes and the physiotherapy assessment. This is often divided into several sections.











Subjective assessment


Subjective assessment is based on an interview with the patient. It should generally start with open-ended questions What is the main problem? What troubles you most? allowing the patient to discuss the problems that are most important to them at that time. Indeed, by asking such questions, previously unmentioned problems may surface. As the interview progresses, questioning may become more focused on those important features that need clarification. There are five main symptoms of respiratory disease:








With each of these symptoms, enquiries should be made concerning:









Breathlessness

Breathlessness is the subjective awareness of an increased work of breathing. It is the predominant symptom of both cardiac and respiratory disease. It also occurs in anaemia where the oxygen-carrying capacity of the blood is reduced, in neuromuscular disorders where the respiratory muscles are affected, and in metabolic disorders where there is a change in the acid–base equilibrium (Chapter 3) or metabolic rate (e.g. hyperthyroid disorders). Breathlessness is also found in hyperventilation syndrome or dysfunctional breathing where psychological factors (e.g. anxiety) may be contributory factors.


The pathophysiological mechanisms causing breathlessness are still the subject of intensive investigation. Many factors are involved, including respiratory muscle length–tension relationships, respiratory muscle fatigue, stimulation of pulmonary stretch receptors, and alterations in central respiratory drive.


The duration and severity of breathlessness is most easily assessed through enquiries about the level of functioning in the recent and distant past. For example, a patient may say that 3 years ago he could walk up five flights of stairs without stopping, but now cannot manage even one flight. Some patients may deny breathlessness as they have (unconsciously) decreased their activity levels so that they do not get breathless. They may acknowledge breathlessness only when it interferes with important activities, e.g. bathing. The physio-therapist should always relate breathlessness to the level of function that the patient can achieve.


Comparison of the severity of breathlessness between patients is difficult because of differences in perception and expectations. To overcome these difficulties, numerous gradings have been proposed. The New York Heart Association classification of breathlessness, shown in Box 1.1, was developed for patients with cardiac disease, but is also applicable to respiratory patients. The Borg Rating of Perceived Exertion Scale (Borg 1982) is another scale that is frequently used for both respiratory and cardiac patients. No scale is universal and it is important that all staff within one institution use the same scale.



Breathlessness is usually worse during exercise and better with rest. An exception is hyperventilation syndrome where breathlessness may improve with exercise. Two patterns of breathlessness have been given specific names:





In the cardiac patient, lying flat increases venous return from the legs so that blood pools in the lungs, causing breathlessness. A similar pattern may be described in patients with severe asthma, but here the breathlessness is caused by nocturnal bronchoconstriction.


Further insight into a patient’s breathlessness may be gained by enquiring about precipitating and relieving factors. Breathlessness associated with exposure to allergens and relieved by bronchodilators is typically found in asthma.



Cough

Coughing is a protective reflex that rids the airways of secretions or foreign bodies. Any stimulation of receptors located in the pharynx, larynx, trachea or bronchi may induce cough. Cough is a difficult symptom to clarify as most people cough normally every day, yet a repetitive persistent cough is both troublesome and distressing. Smokers may discount their early morning cough as being ‘normal’ when in fact it signifies chronic bronchitis.


Important features concerning cough are its effectiveness, and whether it is productive or dry. The severity of cough may range from an occasional disturbance to continual trouble. A loud, barking cough, which is often termed ‘bovine’, may signify laryngeal or tracheal disease. Recurrent coughing after eating or drinking is an important symptom of aspiration. A chronic productive cough every day is a fundamental feature of chronic bronchitis and bronchiectasis. Interstitial lung disease is characterized by a persistent, dry cough. Nocturnal cough is an important symptom of asthma in children and young adults, but in older patients it is more commonly due to cardiac failure. Drugs, especially beta-blockers and some other antihypertensive agents, can cause a chronic cough. Chronic cough may cause fractured ribs (cough fractures) and hernias. Stress incontinence is a common complication of chronic cough, especially in women. As this subject is often embarrassing to the patient, specific questioning may be required (see below).


Postoperatively, the strength and effectiveness of cough is important for the physiotherapist to assess.



Sputum

In a normal adult, up to 100 ml of tracheobronchial secretions are produced daily and cleared subconsciously by swallowing. Sputum is the excess tracheobronchial secretions that are cleared from the airways by coughing or huffing. It may contain mucus, cellular debris, microorganisms, blood and foreign particles. Questioning should determine the colour, consistency and quantity of sputum produced each day. This may clarify the diagnosis and the severity of disease (Table 1.1).


Table 1.1 Sputum analysis







































  Description Causes
Saliva Clear watery fluid  
Mucoid Opalescent or white Chronic bronchitis without infection, asthma
Mucopurulent Slightly discoloured, but not frank pus Bronchiectasis, cystic fibrosis, pneumonia
Purulent Thick, viscous:  
 







Frothy Pink or white Pulmonary oedema
Haemoptysis Ranging from blood specks to frank blood, old blood (dark brown) Infection (tuberculosis, bronchiectasis), infarction, carcinoma, vasculitis, trauma, also coagulation disorders, cardiac disease
Black Black specks in mucoid secretions Smoke inhalation (fires, tobacco, heroin), coal dust

A number of grading systems for mucoid, mucopurulent, purulent sputum have been proposed. For example, Miller (1963) suggested:



















M1 mucoid with no suspicion of pus
M2 predominantly mucoid, suspicion of pus
P1 1/3 purulent, 2/3 mucoid
P2 2/3 purulent, 1/3 mucoid
P3 >2/3 purulent.

However, in clinical practice sputum is often classified as mucoid, mucopurulent or purulent, together with an estimation of the volume (1 teaspoon, 1 egg cup, half a cup, 1 cup). Odour emanating from sputum signifies infection. In general, particularly offensive odours suggest infection with anaerobic organisms (e.g. aspiration pneumonia, lung abscess).


In patients with allergic bronchopulmonary aspergillosis (ABPA), asthma and occasionally bronchiectasis, sputum ‘casts’ may be expectorated. Classically these take the shape of the bronchial tree.


Haemoptysis is the presence of blood in the sputum. It may range from slight streaking of the sputum to frank blood. Frank haemoptysis can be life threatening, requiring bronchial artery embolization or surgery. Isolated haemoptysis may be the first sign of bronchogenic carcinoma, even when the chest radiograph is normal. Patients with chronic infective lung disease often suffer from recurrent haemoptyses.




Chest pain

Chest pain in respiratory patients usually originates from musculoskeletal, pleural or tracheal inflammation, as the lung parenchyma and small airways contain no pain fibres.


Pleuritic chest pain is caused by inflammation of the parietal pleura, and is usually described as a severe, sharp, stabbing pain that is worse on inspiration. It is not reproduced by palpation.


Tracheitis generally causes a constant burning pain in the centre of the chest, aggravated by breathing.


Musculoskeletal (chest wall) pain may originate from the muscles, bones, joints or nerves of the thoracic cage. It is usually well localized and exacerbated by chest and/or arm movement. Palpation will usually reproduce the pain.


Angina pectoris is a major symptom of cardiac disease. Myocardial ischaemia characteristically causes a dull central retrosternal gripping or band-like sensation, which may radiate to either arm, neck or jaw.


Pericarditis may cause pain similar to angina or pleurisy.


A differential diagnosis of chest pain is given in Table 1.2.


Table 1.2 Syndromes of chest pain



































































Condition Description Causes
Pulmonary
Pleurisy Sharp, stabbing, rapid onset, limits inspiration, well localized, often ‘catches’ at a certain lung volume, not tender on palpation Pleural infection or inflammation of the pleura, trauma (haemothorax), malignancy
Pulmonary embolus Usually has pleuritic pain, with or without severe central pain Pulmonary infarction
Pneumothorax Severe central chest discomfort, with or without pleuritic component, severity depends on extent of mediastinal shift Trauma, spontaneous, lung diseases (e.g. cystic fibrosis, AIDS)
Tumours May mimic any form of chest pain, depending on site and structures involved Primary or secondary carcinoma, mesothelioma
Musculoskeletal
Rib fracture Localized point tenderness, often sudden onset, increases with inspiration Trauma, tumour, cough fractures (e.g. in chronic lung diseases, osteoporosis)
Muscular Superficial, increases on inspiration and some body movements, with or without palpable muscle spasm Trauma, unaccustomed exercise (excessive coughing during exacerbations of lung disease), accessory muscles may be affected
Costochondritis (Tietze’s syndrome) Localized to one or more costochondral joints, with or without generalized, non-specific chest pain Viral infection
Neuralgia Pain or paraesthesia in a dermatomal distribution Thoracic spine dysfunction, tumour, trauma, herpes zoster (shingles)
Cardiac
Ischaemic heart disease (angina or infarct) Dull, central, retrosternal discomfort like a weight or band with or without radiation to the jaw and/or either arm, may be associated with palpitations, nausea or vomiting Myocardial ischaemia, onset at rest is more suggestive of infarction
Pericarditis Often retrosternal, exacerbated by respiration, may mimic cardiac ischaemia or pleurisy, often relieved by sitting Infection, inflammation, trauma, tumour
Mediastinum
Dissecting aortic aneurysm Sudden onset, severe, poorly localized central chest pain Trauma, atherosclerosis, Marfan’s syndrome
Oesophageal Retrosternal burning discomfort, but can mimic all other pains, worse lying flat or bending forward Oesophageal reflux, trauma, tumour
Mediastinal shift Severe, poorly localized central discomfort Pneumothorax, rapid drainage of a large pleural effusion


Incontinence

Incontinence is a problem that is often aggravated by chronic cough (Orr et al 2001, Scottish Intercollegiate Guidelines Network 2004, Thakar & Stanton 2000). Coughing and huffing increase intra-abdominal pressure, which may precipitate urine leakage. Fear of this may influence compliance with physiotherapy. Thus, identification and treatment of incontinence is important. Questions may need to be specific to elicit this symptom: ‘When you cough, do you find that you leak some urine? ‘Does this interfere with your physiotherapy?’





Quality of life

Assessment of quality of life (QOL) is becoming increasingly important to assess the impact of disability on the patient and as a measure of response to treatment. QOL scales measure the effect of an illness and its management upon a patient as perceived by the patient. Often there is little correlation between physiological measures (e.g. lung function) and QOL. A number of both generic, for example SF-36 (Ware & Sherbourne 1992) and disease-specific QOL scales are available which allow data to be gathered principally by self-report questionnaires or interview. QOL scales available for assessment of patients with respiratory or cardiovascular disease are reviewed elsewhere (Juniper et al 1999, Kinney et al 1996, Mahler 2000, Pashkow et al 1995). The choice of a QOL measure requires an evaluation of QOL scales with respect to their reliability, validity, responsiveness and appropriateness (Aaronson 1989).




Objective assessment


Objective assessment is based on examination of the patient, together with the use of tests such as spirometry, arterial blood gases and chest radiographs. Although a full examination of the patient should be available from the medical notes, it is worthwhile to make a thorough examination at all times, as the patient’s condition may have changed since the last examination, and the physiotherapist may need greater detail of certain aspects than is available from the notes. A good examination will provide an objective baseline for future measurement of the patient’s progress. By developing a standard method of examination, the findings are quickly assimilated and the physiotherapist remains confident that nothing has been omitted. This chapter refers mainly to assessment of the adult patient, although much of the information is also relevant to the paediatric population. Specific details for the assessment of infants and children and normal values can be found in the relevant paediatric sections (Chapters 9 & 10).




General observation

Examination starts by observing the patient from the end of the bed. Is the patient short of breath, sitting on the edge of the bed, distressed? Is he obviously cyanosed? Is he on supplemental oxygen? If so, how much? What is the speech pattern – long fluent paragraphs without discernible pauses for breath, quick sentences, just a few words, or are they too breathless to speak? When he moves around or undresses, does he become distressed? With a little practice, these observations should become second nature and can be noted while introducing yourself to the patient.


In the intensive care patient there are a number of further features to be observed. The level of ventilatory support must be ascertained. This includes both the mode of ventilation (e.g. supplemental oxygen, continuous positive airway pressure, intermittent positive pressure ventilation) and the route of ventilation (mask, endotracheal tube, tracheostomy). The level of cardiovascular support should also be noted, including drugs to control blood pressure and cardiac output, pacemakers and other mechanical devices. The patient’s level of consciousness should also be noted. Any patient with a decreased level of consciousness is at risk of aspiration and retention of pulmonary secretions. In those patients who are not pharmacologically sedated, the level of consciousness is often measured using the Glasgow Coma Scale (Box 1.2

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Jun 5, 2016 | Posted by in CARDIAC SURGERY | Comments Off on Assessment and investigation of patients’ problems

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