كيف تفحص حالة صدر؟ / How to examine a chest case ?

Name: كيف تفحص حالة صدر؟ / How to examine a chest case ?
Uploaded: 2023-12-02T15:05:11.000Z
Duration: 1 h 42 min 30 s

How to Examine a Patient's Chest Condition

Introduction

The speaker, Dr. Tamer, introduces the topic of examining chest conditions and mentions previous episodes on taking patient history and examining other body parts.

This episode is particularly aimed at medical students preparing for practical exams, emphasizing the importance of understanding COPD (Chronic Obstructive Pulmonary Disease).

Initial Steps in Examination

Before starting the examination, it’s crucial to wash hands with soap or use alcohol gel and wear personal protective equipment like masks.

Introduce yourself to the patient clearly stating your name and role (e.g., intern or fifth-year student), ensuring you have their consent to proceed with the examination.

Patient Positioning and Exposure

Position the patient appropriately; if they are struggling to breathe, place them at a 45-degree angle rather than lying flat.

Ensure proper exposure by uncovering from the navel upwards while maintaining modesty by covering lower limbs unless necessary.

General Condition Assessment

Assess the patient's general condition: check if they are fully conscious and oriented regarding time, place, and person.

Note any significant weight changes (obesity or cachexia), which can indicate underlying health issues.

General Inspection Techniques

Conduct a quick visual inspection of the patient’s legs for signs of cyanosis or edema that may indicate respiratory distress.

Observe any medical equipment present such as oxygen masks or catheters; document their type and settings accurately.

Vital Signs Measurement

Measure vital signs including blood pressure, pulse rate using three fingers for accuracy, respiratory rate without informing the patient to avoid alteration in breathing patterns.

Normal respiratory rates range from 12 to 20 breaths per minute; also measure temperature as part of vital signs assessment.

Facial Features Examination

Inspect facial features for any distinctive characteristics related to specific syndromes (e.g., Cushing's syndrome).

Check hairline patterns and note any abnormalities such as hair loss which could be indicative of systemic issues.

Eye Examination Insights

Examine eyes for jaundice by checking sclerae; assess conjunctiva for pallor indicating anemia or other conditions.

Oral Candidiasis and Its Causes

Understanding Oral Candidiasis

Oral candidiasis may arise from the use of corticosteroid inhalers if not properly rinsed afterward, or due to underlying immunocompromised states.

Dental and oral hygiene practices are crucial in preventing infections; piercings in the lip area can also contribute to risk factors.

Inspection Techniques

During inspection, assess for any masses or scars that could indicate thyroid issues, including partial or complete removal of the thyroid gland.

Evaluate tracheal deviation as a potential indicator of underlying conditions; a deviation may suggest structural abnormalities.

Carotid Artery Examination

Importance of Auscultation

Prior to palpating the carotid artery, auscultation is recommended to detect any bruits which may indicate stenosis.

Palpate each carotid artery separately to avoid compromising blood supply to the brain and monitor rhythm and volume.

Jugular Venous Pressure Assessment

Assess jugular veins for congestion while positioning the patient at a 45-degree angle; observe changes during inspiration.

In patients with COPD, increased jugular venous distension during expiration can be noted due to respiratory effort.

Measuring Central Venous Pressure

Techniques for Measurement

Use internal jugular vein assessment as it provides insight into central venous pressure (CVP); this is typically done with the patient positioned correctly.

Measure CVP by aligning vertical and horizontal rulers against anatomical landmarks; values over 4 cm suggest elevated pressures potentially indicating right-sided heart failure.

Trachea Examination

Identifying Tracheal Deviation

Assess tracheal position by comparing distances from sternocleidomastoid muscles on both sides; deviations can indicate unilateral lung disease.

Conditions such as large pleural effusions or tumors can push or pull the trachea away from its midline position.

Additional Observations

In cases of COPD, expect central trachea alignment due to bilateral lung involvement rather than unilateral issues.

The distance between cricoid cartilage and suprasternal notch should be assessed; reduced distance may indicate barrel chest associated with COPD.

Clinical Signs Related to Breathing Patterns

Tracheal Tugging Significance

Observe for "tracheal tug" during respiration which indicates movement towards fingers placed on cricoid cartilage—this suggests respiratory distress in COPD patients.

Clinical Examination Insights

Cardiovascular and Thyroid Assessment

The presence of a pulse in the finger can indicate conditions like aortic aneurysm, especially if it correlates with heartbeats.

Examination of lymph nodes is crucial; particularly those under the left side of the neck, as they may enlarge in cases such as gastric or breast cancer.

Assessing for clubbing involves checking the window between nails; closure indicates potential COPD or bronchogenic carcinoma.

Tremors and Skin Observations

Fine tremors can be evaluated by having the patient extend their arms; these may result from beta agonist use (e.g., salbutamol).

Flapping tremors should also be assessed, which could indicate respiratory issues or other underlying conditions.

Signs of Corticosteroid Use and Hypoxia

Skin examination for signs like thin skin or subcutaneous bruising may suggest long-term corticosteroid use due to severe asthma or COPD.

Peripheral cyanosis can indicate hypoxia; additional signs include tar staining from smoking.

Capillary Refill and Joint Examination

Capillary refill time should return to normal within two seconds; prolonged times may suggest dehydration or poor blood flow.

Joint examination is essential as rheumatoid arthritis can present with pulmonary complications like pleural effusion.

Vital Signs and Abdominal Assessment

Pulse assessment includes rate, rhythm, volume, and quality. Irregular pulses require full minute counting for accuracy.

A quick abdominal exam checks for ascites, splenomegaly, scars, etc., which are critical indicators of underlying health issues.

Chest Examination Techniques

Understanding Chest Issues: High vs. Low Problems

Differentiating Between High and Low Chest Problems

The high side of the chest may indicate issues such as pleural effusion, large masses, or tumors, while the low side could suggest conditions like collapse or fibrosis.

Observing patient breathing can help identify which side is affected; if one side moves less during inhalation, it likely indicates a problem on that side.

Assessing Movement and Conditions

If the high side does not move well during breathing, it suggests pleural effusion or pneumothorax; conversely, if the low side is less mobile, it may indicate collapse or fibrosis.

Some patients might have congenital deformities like pectus excavatum (inward chest) or pectus carinatum (outward chest), which should be noted in assessments.

Recognizing Barrel-Shaped Chest in COPD

In patients with COPD, an increase in anterior-posterior diameter leads to a barrel-shaped chest due to hyperinflation.

Signs such as Harrison's sulcus may appear where the diaphragm meets the rib cage, indicating chronic respiratory conditions.

Respiratory Movements and Patterns

Evaluating Respiratory Rate and Pattern

Key aspects include measuring breaths per minute and observing patterns—abdominal versus thoracic respiration—which can vary by gender.

Abnormal breathing patterns like Kussmaul's (deep rapid breaths), Cheyne-Stokes (periodic deep breaths followed by apnea), and Biot's breathing (irregular periods of deep breaths).

Accessory Muscle Use in Breathing

Normal breathing primarily uses the diaphragm; however, patients with respiratory distress may recruit accessory muscles such as intercostal muscles for assistance.

Identifying Signs During Inspection

Hoover's Sign and Diaphragm Flattening

Hoover’s sign indicates that during inspiration in COPD patients, instead of expanding outward, the lower part of the rib cage retracts due to a flattened diaphragm from hyperinflation.

Scarring and Structural Changes

Inspect for scars from previous surgeries (e.g., median sternotomy for heart surgery); these can affect lung function assessment.

Local Assessment Techniques

Palpation Techniques

Begin palpation at various regions of the chest to assess tenderness; this can reveal underlying issues like fractures or muscle inflammation.

Tenderness Indicators

Focal Tactile Fremitus and Chest Examination Techniques

Understanding Focal Tactile Fremitus

Focal tactile fremitus refers to the vibrations produced by the vocal cords during speech, which can be felt on the chest wall. The clinician instructs the patient to say "four" repeatedly while palpating different areas of the chest.

Increased fremitus in a specific area may indicate conditions such as consolidation or collapse, where vibrations are more pronounced compared to surrounding regions.

Clinical Implications of Abnormal Fremitus

A decrease in fremitus could suggest issues like pleural effusion or emphysema, while increased fremitus might indicate pneumonia or tumors affecting lung tissue density.

In patients with COPD (Chronic Obstructive Pulmonary Disease), fremitus is typically equal across all areas due to its generalized nature affecting overall lung function.

Assessing Chest Expansion

To evaluate chest expansion, clinicians place their hands on the patient's back and ask them to take a deep breath. Normal expansion should be symmetrical; asymmetry may indicate underlying pathology such as pneumonia or pleural effusion.

In cases of COPD, limited movement may be observed due to reduced lung capacity.

Percussion Techniques in Lung Assessment

During percussion, clinicians tap on various areas of the chest wall to assess resonance. Normal findings should yield a resonant sound except over certain anatomical structures like the heart and liver.

The technique involves comparing sounds from side to side and moving downwards through intercostal spaces for thorough assessment.

Identifying Pathological Changes Through Percussion

Dullness upon percussion may suggest conditions like consolidation (e.g., pneumonia), while hyper-resonance indicates conditions such as pneumothorax or emphysema.

Specific techniques help differentiate between sub-diaphragmatic issues (like liver enlargement or ascites) versus those above it (like pleural effusion).

Advanced Percussion Techniques: Differentiating Sounds

Clinicians utilize tidal percussion techniques to determine if dullness is due to sub-diaphragmatic masses or fluid accumulation above it by asking patients to take deep breaths during examination.

Reverse tidal percussion helps identify unilateral diaphragm paralysis by observing changes in resonance when breathing deeply.

Understanding Liver Borders and Chest Percussion

Determining the Liver Border

The liver border can be defined by tidal percussion, which helps in identifying its position relative to other organs.

In patients with conditions like COPD, emphysema may cause the liver border to shift downwards due to lung expansion pushing the liver lower than its typical intercostal space.

Special Areas of Percussion

The apex of the lung is defined by specific anatomical landmarks: medial to the clavicle and posteriorly at one-third of the scapula's spine.

If there is a density change in this area during percussion, it could indicate issues such as tuberculosis or tumors affecting lung function.

Identifying Pleuritic Areas

The pericardial area is identified as a region devoid of lung tissue, bordered by specific ribs (4th to 6th). This area should be assessed for fluid presence.

Conditions like emphysema can lead to resonance changes in this area due to lung enlargement covering heart structures.

Assessing Densities and Resonance Changes

A special area known as "trumpet area" can be identified where patients place their right hand; this indicates air presence when percussion reveals tympanic sounds.

Increased density in this region may suggest pleural effusion or other abnormalities that need further investigation.

Auscultation Techniques

Auscultation involves listening for equal air entry on both sides, comparing breath sounds between left and right lungs.

Normal breath sounds are soft (vesicular), while abnormal bronchial breathing suggests consolidation or obstruction within the lungs.

Recognizing Abnormal Breath Sounds

Bronchial breathing should only be heard over trachea; if detected elsewhere, it indicates potential pathology such as pneumonia or tumors.

Understanding Respiratory Sounds and Their Implications

Types of Abnormal Respiratory Sounds

The term "ronchi" is often used interchangeably with "wheeze," though ronchi may have a higher pitch. Ronchi typically indicates airway obstruction, leading to loud, high-pitched sounds.

Stridor can occur during inhalation or exhalation due to various causes such as foreign body obstruction or laryngeal issues. It is characterized by a harsh sound.

"Crackles" are described as sounds resembling light bubbling or the noise made when crumpling cellophane. They can indicate fluid in the airways, often associated with conditions like pneumonia.

Crackles are categorized into two types:

Friction: Associated with pleural inflammation and heard during inhalation.

Coarse: Loud enough to be audible without a stethoscope, often linked to severe respiratory conditions.

The presence of wheezing can indicate severe pulmonary edema or bronchial conditions. These sounds may be detected even without specialized equipment in advanced cases.

Additional Respiratory Sound Characteristics

"Pleural rub" refers to the sound produced by friction between inflamed pleurae, indicating potential underlying lung pathology.

Vocal resonance testing involves having patients vocalize while auscultating different lung areas. Increased resonance may suggest consolidation or other abnormalities in lung tissue.

Examination Techniques for Respiratory Assessment

During physical examination, assess for signs of respiratory distress and check for any abnormal pigmentation or scarring on the back that could indicate chronic conditions.

Observe respiratory movements bilaterally and note if accessory muscles are being utilized during breathing; this can signal increased work of breathing.

Palpate the thoracic area while asking patients to take deep breaths; observe chest expansion symmetry and any limitations in movement which could indicate underlying pathology.

Assess for lower limb edema as it may correlate with heart failure; pressing on swollen areas helps determine fluid retention severity.