Focus: Thorax, Lungs & Breasts
Presented by: Dr. Brenda Chan
Class: N266
Bony Structures of the Thorax
Anterior Landmarks
Posterior Landmarks
Lateral Anatomical Lines
Anteroposterior (AP) Diameter
Lungs
Lobes, Trachea, Bronchi
Mediastinum
Sternal notch
Angle of Louis
2nd Costal Cartilage
Lung Lobes
Upper lobes, Middle lobe, Lower lobes
Anatomical Lines
Midsternal line, Midclavicular line, Anterior axillary line
Resources: RnCeys.com, Paul & Barb Bauer, RNs
Cough
Onset, nature, production (color, timing), pattern, severity
Shortness of Breath (SOB)
Onset, pattern, severity, wheezing, dyspnea on exertion (DOE), paroxysmal nocturnal dyspnea (PND)
Chest Pain
Exposure to Respiratory Infections
Influenza, Tuberculosis (TB)
Review of Systems (ROS)
Respiratory, cardiac, musculoskeletal, gastrointestinal (GI) systems
Past Medical History (PMH)
Tobacco and medication (inhalers, OTC decongestants)
Use ASPTIM approach
Gender
Age
Family History
Asthma, Cystic Fibrosis (CF), Tuberculosis (TB)
Smoking
Sedentary Lifestyle
Forced immobilization
Occupational Exposure
Skin
Inspect skin and nipples
Bony Structures
Assess AP diameter, anterior/posterior deviations
Respiratory Rate and Pattern
Normal vs. unusual patterns, accessory muscle use
Skin Color, Lips, Nailbeds
Tracheal Placement
Anterior “Tug” estimate
Paraspinous Muscles
Thoracic Expansion
Tactile Fremitus
Assess increased vs. decreased fremitus
Crepitation
Subcutaneous emphysema
Percussion Tones
Tympany, hyper-resonance, resonance, dullness, flatness
Techniques
Direct vs. indirect techniques
Diaphragmatic Excursion
Techniques and sequence
Without Stethoscope
Sounds
Identify vesicular, bronchovesicular, and bronchial sounds
Adventitious Sounds
Crackles, wheezes, pleural friction rub
Right Upper Lobe
Right Middle Lobe
Right Lower Lobe
Left Lung Lobes
Lung Mapping
Illustrative details of lobes
Tracheal Sound
Bronchovesicular Sounds
Vesicular Sounds
Anatomical Areas
Anterior vs. Posterior assessments
Stridor: Upper airway obstruction; sounds over trachea.
Rales (Crackles)
Associated with fluids in lungs, smaller airways
Rhonchi
Larger airways obstructed by fluids
Wheezing
High-velocity airflow through narrowed bronchi
Crackles: Disruptive air passage due to fluid, mucus, or pus in small airways.
Rhonchi: Produced by air through obstructed airways with thick secretions or spasms.
Wheezes: Continuous, high-pitched sound from narrowed airways.
Asthma
Atelectasis
Pneumothorax
Bronchitis
Emphysema
Pleural Effusion
Pneumonia
Lung Cancer
Pulmonary Fibrosis: Fibrous tissue in lungs reduces elasticity.
Pneumonia: Alveoli fill with thick fluid, complicating gas exchange.
Pulmonary Tuberculosis: Bacteria encapsulated in tubercles, lowering lung elasticity.
Emphysema: Alveoli destruction reduces gas exchange surface.
Asthma: Inflammation and constriction of airways from irritants.
Bronchitis: Infection or irritants cause inflammation and mucus production.
Extreme Obesity
Difficulty Swallowing
Weakened Chest Muscles
Frequent Respiratory Infections
Pneumonia
Pneumothorax
Pulmonary Constriction/Asthma
Foreign Body Aspiration
Pulmonary Embolus
Pericardial Tamponade
Heart Failure
High Altitudes
Psychogenic Factors
Poison Exposure
Definition: Fluid build-up in pericardial sac affecting heart function.
Consequences: Impaired pumping ability due to pressure from fluid accumulation.
INCREASED:
Acidosis (metabolic), CNS lesions, anxiety, aspirin poisoning, hypoxemia, pain.
DECREASED:
Alkalosis, CNS lesions, myasthenia gravis, narcotic overdose, extreme obesity.
Symptoms:
Inspiratory stridor, hoarse cough, nasal flaring, suprasternal retraction.
Stridor: Inspiratory and expiratory.
Barking Cough
Retractions: Involvement of subcostal and intercostal spaces.
Cyanosis: Visible even with supplemental oxygen.
Viral Infection:
Mucoid, blood-streaked (less common).
Bacterial Infection:
Yellow, green, rust (bloody), clear, purulent, or mucoid.
Chronic Infectious Diseases:
Variable, with intermittent blood streaking.
Carcinoma:
Persistent blood streaking.
Infarction:
Clotted blood, large amounts.
TB Activity:
Large amounts of blood.
Oxygen Use:
Nasal cannula (NC) vs. mask.
Suction Patient:
Encourage coughing prior to assessment.
Ventilator/Tracheostomy Management:
Smoking History Calculation:
Pack years = Packs per day X Years smoked.
Infection Exposure
Frequency of respiratory infections and influenza immunity.
Weather Effects
Sedentary Lifestyle & Immobilization
Risk Factors:
Smoke exposure, cough, dyspnea, fatigue, significant weight change, fever.
Breast Issues to Consider:
Discomfort, lumps, nipple discharge.
PMH:
Birth control pills (BCPs), hormonal medications, smoking history.
Family History (FH):
Family history of cancer is significant; 73% of breast cancer patients have no family history.
Cyclical Changes:
Lumps with menstrual cycle.
Lactation and Breast Self-Exams (BSE)
Menstrual History
Obstetric History (OB Hx)
Dermatologic Issues
Lump/Thickening:
Different from surrounding breast tissue.
Nipple Changes:
Inversion or shape change.
Skin Texture Changes:
Dimpling.
Nipple Discharge:
Skin Rashes:
Swelling in Axilla or Collarbone
Old Age and Obesity
Nulliparity
Family History of Cancer
Duct Papilloma:
Associated with bleeding.
Physical Changes:
Enlargement, asymmetry, nipple retraction, Paget disease (eczema-like)
Mammary Glands:
Paired structures on anterior chest wall.
Nipple and Areola:
Nipple is surrounded by areola; size varies greatly.
Tissue Density:
Variability by age and reproductive history.
Responsible for milk production.
Organized into 15-20 lobes, which contain smaller lobules with acini cells (milk-producing cells).
Lactiferous ducts drain milk from each lobe to the nipple.
Provides support and structure to the breast.
Cooper’s ligaments are fibrous bands that help maintain breast shape.
Fatty tissue that surrounds and cushions the breast.
The amount of fat determines breast size, but does not affect function.
Knowing the tissue structure helps detect abnormalities (e.g., lumps, tumors, cysts).
Changes in Cooper’s ligaments may cause dimpling of the skin, which can be a sign of breast cancer.
When assessing the breasts, nurses check for size, shape, and skin changes to detect possible abnormalities.
Size & Symmetry – Is one breast significantly larger than the other?
Contour – Look for swelling, dimpling, or abnormalities in shape.
Skin Appearance – Check for redness, rashes, thickening, or visible veins.
Size, shape, and direction – Do they point in the same direction?
Rashes or ulcerations – Could indicate skin conditions or infection.
Discharge – Unusual discharge may suggest infection, hormonal changes, or cancer.
Raise arms above the head – This helps reveal changes in shape or hidden masses.
Press hands against hips – Helps check for dimpling or skin retraction, which can indicate underlying disease.
Early detection of breast changes improves outcomes in breast cancer diagnosis.
Changes in contour, skin texture, or nipple position may indicate an underlying issue.
Palpation (feeling the breast with hands) is done to check for lumps, tenderness, or other abnormalities.
Consistency – Is the tissue soft, firm, or lumpy?
Tenderness – Is there any pain when pressing on the breast?
Nodules (Lumps) – If a lump is found, note:
Location – Where is it in the breast?
Size & Shape – Is it round, irregular, or fixed?
Consistency – Is it hard or soft?
Tenderness – Does it hurt when touched?
Mobility – Does it move or feel stuck in place?
Most lumps are benign (non-cancerous), but some can indicate serious conditions like breast cancer.
Regular breast exams help with early detection and better treatment outcomes.
Check for tenderness or masses beneath the nipple.
Gently compress the areola to see if there is any discharge (note the color, consistency, and amount).
Bloody or persistent discharge may indicate a serious condition like infection or cancer.
Inspect and palpate the nipple and areola for lumps, swelling, or discharge.
Though rare, men can also develop breast cancer, so any abnormalities should be checked.
Palpate the central axillary nodes to feel for swelling, tenderness, or lumps.
Enlarged lymph nodes may indicate infection or cancer spread.
Nipple discharge, lumps, or changes in lymph nodes can be early signs of disease.
Breast cancer can spread to lymph nodes, so checking them is crucial for staging the disease.
If a mass (lump) is found, it is important to assess specific characteristics to determine if it could be cancerous or benign.
Location – Where is the lump? (Use a clock-face method, e.g., "2 o’clock position").
Size – Measure in centimeters.
Shape – Is it round, oval, or irregular?
Mobility – Does it move freely, or is it fixed in place?
Tenderness – Is it painful when touched?
Consistency – Is it soft, firm, or hard?
Borders – Are the edges well-defined or unclear?
Retractions/Dimpling – Skin pulling inward can suggest cancer.
Usually non-tender
Hard and irregular in shape
Fixed (doesn’t move easily)
Poorly defined borders
More common in women over 40
Early detection is key – A lump can take 3-8 years to grow before becoming noticeable.
Regular breast exams and mammograms help find abnormalities early.
Discovery of BRCA1 & BRCA2 genes – These genetic mutations increase breast cancer risk.
80% of breast lumps are benign (non-cancerous).
1 in 6 women will develop breast cancer in their lifetime.
75% of breast cancer cases occur in women over 50.
The 5-year survival rate for localized breast cancer is over 90%, but it drops to 60% if cancer spreads.
Breast Self-Exams (BSE):
Perform monthly to check for lumps or changes.
Clinical Breast Exams:
Done by a healthcare provider regularly.
Mammograms:
Baseline at age 40 (earlier if high risk).
Every 1-2 years between 40-50.
Annually after 50.
Early detection improves survival rates.
Regular screening helps find cancer before symptoms appear.
Tumor: 2 cm or smaller.
Lymph Nodes: Absence indicated other than small clusters.
Staging of Breast Cancer: Stage IIADescription:
In Stage IIA, the tumor (the lump of cancer) is larger than 2 centimeters but up to 5 centimeters in size. This is about the size of a small egg or a big grape.
At this stage, the cancer may have spread to nearby lymph nodes, which are small, bean-shaped structures that help your body fight infections.
Specifically, 1 to 3 lymph nodes in the armpit area (axilla) or near the breastbone can be affected by the cancer.
This spread to a few lymph nodes shows that the cancer is serious but not as advanced as later stages.
Treatments for Stage IIA may include surgery to remove the tumor and affected lymph nodes, chemotherapy (medicine to kill cancer cells), or radiation therapy (using high-energy rays to target cancer).
It's important for patients to talk to their doctors about the best treatment options and how to manage the disease effectively.
Staging of Breast Cancer: Stage IIB
Description:
In Stage IIB, the tumor is larger than 2 centimeters but not bigger than 5 centimeters. This means the tumor is about the size of a grape or a little smaller than a lime.
A tumor can also be bigger than 5 centimeters, which is like the size of a large lemon or more.
This stage means that cancer has spread to the lymph nodes, which are small, round structures found in places like the armpit (axilla) or near the breastbone.
When cancer affects the lymph nodes, it indicates that the cancer is more serious and could grow or spread further.
At this stage, doctors will look for ways to treat the cancer effectively, which could involve surgery, chemotherapy (using medicine to kill cancer cells), radiation (using high-energy rays to kill cancer cells), or other treatments.
It's important to work closely with healthcare providers to understand the best options for treatment and to monitor how the cancer is responding.
Staging of Breast Cancer: Stage IIIA
Description:
In Stage IIIA, the tumor can be any size, which means it can be small or large.
This stage of cancer affects the lymph nodes, which are small, bean-shaped structures in your body that help the immune system fight infections.
Specifically, cancer has spread to the lymph nodes in the armpit area (called the axilla) or those located near the breastbone.
This spreading means that the cancer is more serious compared to earlier stages.
Treatment for Stage IIIA may be more complex and could involve a combination of surgery, chemotherapy, radiation, or other therapies.
Understanding this stage is important for patients and doctors to plan the best course.
Staging of Breast Cancer: Stage IIIBDescription:
In Stage IIIB, the breast cancer has spread to the chest wall, which is the part of your body underneath the breasts.
This spread can cause swelling and may lead to ulcers, which are open sores on the skin.
It means that the cancer is more serious and may need more advanced treatment than earlier stages.
taging of Breast Cancer: Stage IIICDescription:
In Stage IIIC of breast cancer, the tumor can be any size. This means the tumor can be very small or very big.
The important thing about Stage IIIC is that cancer has spread (metastasized) to multiple lymph nodes.
These lymph nodes are small structures in the body that help fight infections, and they can be affected if the cancer spreads.
Affected Areas:
In Stage IIIC, cancer may spread to:
10 or more lymph nodes in the armpit area (axilla) or near the collarbone (above or below).
Understanding Stage IIIC is important because it affects the treatment options a doctor may suggest. It may require more complex treatments, and the focus may shift to managing the disease and improving the patient's quality of
Description: In Stage IV breast cancer, the tumor may be any size. This means it can be very small or very large. What makes Stage IV special is that the cancer has spread from the breast to other parts of the body. This spreading is known as metastasis.
Lymph Node Involvement: In Stage IV, the cancer can spread to many lymph nodes. Lymph nodes are small structures in the body that help fight infection. In this stage, the cancer may affect lymph nodes in areas like the armpits or above and below the collarbone.
Affected Organs: The cancer can also move to important organs, including:
Brain: This can cause headaches, confusion, or other neurological symptoms.
Lungs: If the cancer spreads to the lungs, it may lead to breathing problems or a persistent cough.
Liver: This can affect how the liver works and may cause symptoms like jaundice (yellowing of the skin and eyes) or pain in the upper abdomen.
Bone: When the cancer spreads to the bones, it can cause pain or fractures.
Importance: Understanding Stage IV breast cancer is crucial because treatment options may be more complex, and the focus may change to managing the disease and improving quality of life.
📌 Example: Think of the breast like an orange:
Peel (Skin) – Covers and protects.
Fibrous Tissue (White Pith) – Supports the shape.
Glandular Tissue (Juicy Segments) – Produces milk.
Lactiferous Ducts (Straws) – Carry milk to the nipple.
Cooper’s Ligaments (Thin Strings Inside the Orange) – Keep the breast in place.
What to look for:
✅ Size & Shape – One breast is slightly bigger? That’s normal! But sudden changes may not be.
✅ Skin Texture – Any dimples or thickening (like an orange peel) could be a problem.
✅ Nipple Changes – Is one suddenly pulled inward or leaking fluid?
📌 Example: Imagine looking at an apple. If there’s a dent, a color change, or a deep spot, you’d check if it’s bruised. The same applies to breast changes!
✅ Feel for lumps, tenderness, or unusual textures using the pads of your fingers.
✅ Use a circular motion to cover the whole breast.
✅ Don’t forget to check the underarm (axilla) for swollen lymph nodes.
📌 Example: Think of feeling for a pea under a blanket—it may be small, but you can still find it with gentle pressure.
🚩 Warning signs of a lump that might be cancerous:
❌ Hard & Fixed (Doesn’t move when touched)
❌ Irregular Shape (Not round, but jagged)
❌ Painless (Most cancerous lumps don’t hurt)
❌ Skin Changes (Dimpling, redness, or nipple retraction)
📌 Example: Imagine pressing on a grape (soft & movable = normal cyst) vs. pressing on a raw almond (hard & fixed = concerning lump).
✅ 80% of lumps are benign (not cancer).
✅ Mammograms detect cancer early – Start screening at 40 (earlier if high risk).
✅ Self-exams help detect changes early!
📌 Example: Think of checking your car’s tires—if you check them monthly, you’ll catch small issues before they turn into a flat tire. The same goes for breast exams—early detection saves lives!
👩⚕ As a nurse, you’ll be helping patients detect and prevent breast cancer early.
💡 **Knowing what’s normal vs. abnormal helps you educate