Respiratory Disorder Nursing Care PDF
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This document details nursing interventions for various age-related respiratory changes, focusing on alveolar function, pharynx, and larynx, and pulmonary vascular function. It covers topics like inspection, palpation, percussion, and auscultation within lung assessments, and encourages patient fitness and oral hygiene for maintaining respiratory health.
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**Respiratory Disorder** +-----------------------------------+-----------------------------------+ | **Pulmonary system changes with | | | aging:** | | | |...
**Respiratory Disorder** +-----------------------------------+-----------------------------------+ | **Pulmonary system changes with | | | aging:** | | | | | | - **Alveoli (6)** | | | | | | | | | | | | - Alveolar surface area | | | decreases. | | | | | | - Diffusion capacity decreases. | | | | | | - Elastic recoil decreases. | | | | | | - Bronchioles and alveolar | | | ducts dilate. | | | | | | - Ability to cough decreases. | | | | | | - Airways close early. | | | | | | - | | | | | | Q. **What are some nursing | | | interventions for age related | | | changes in alveolar | | | function?** | | | | | | - Include inspection, | | | palpation, percussion, and | | | auscultation in lung | | | assessments. Rationale: | | | Inspection, palpation, | | | percussion, and auscultation | | | are needed to detect normal | | | age-related changes. | | | | | | - Help patient actively | | | maintain health and fitness. | | | Rationale: Health and fitness | | | help keep losses in | | | respiratory functioning to a | | | minimum. | | | | | | - Assess patient\'s | | | respirations for abnormal | | | breathing patterns. | | | Rationale: Periodic breathing | | | patterns (e.g., | | | Cheyne-Stokes) can occur. | | | | | | - Encourage frequent oral | | | hygiene. Rationale: Oral | | | hygiene aids in the removal | | | of secretions. | | | | | | **Pharynx and Larynx** | | | | | | - Muscles atrophy. | | | | | | - Vocal cords become slack. | | | | | | - Laryngeal muscles lose | | | elasticity, and airways lose | | | cartilage. | | | | | | **Q.** **What are some nursing | | | interventions for age related | | | changes in Pharynx and Larynx | | | function?** | | | | | | - Have face-to-face | | | conversations with patient | | | when possible. Rationale: | | | Patient\'s voice may be soft | | | and difficult to understand. | | | | | | **Pulmonary Vasculature** | | | | | | - Vascular resistance to blood | | | flow through | | | | | | - Pulmonary vascular system | | | increases | | | | | | - Pulmonary capillary blood | | | volume decreases. | | | | | | - Risk for hypoxia increases. | | | | | | **Q. What are some nursing | | | interventions for age related | | | changes in Pulmonary Vasculature | | | function?** | | | | | | - Assess patient\'s level of | | | consciousness and cognition. | | | Rationale: Patient can become | | | confused during acute | | | respiratory conditions. | | | | | | **Exercise Tolerance** | | | | | | \* The body's response to hypoxia | | | and hypercarbia decreases. | | | | | | **Q. What are some nursing | | | interventions for age related | | | changes in Exercise Tolerance?** | | | | | | \* Assess for subtle | | | manifestations of hypoxia. | | | Rationale: Early assessment helps | | | prevent complications. | | | | | | \* Muscle Strength | | | | | | \* Respiratory muscle strength, | | | especially the diaphragm and the | | | intercostals, decreases. | | | | | | **Q. What are some nursing | | | interventions for age related | | | changes in Muscle Strength?** | | | | | | \* Encourage pulmonary hygiene, | | | and help patient actively | | | maintain health and fitness. | | | Rationale: Regular pulmonary | | | hygiene and overall fitness help | | | maintain maximal functioning of | | | the respiratory system and | | | prevent illness. | | | | | | **Susceptibility to Infection** | | | | | | \* Effectiveness of the cilia | | | decreases.\ | | | \ | | | \* Immunoglobulin A decreases.\ | | | \ | | | \* Alveolar macrophages are | | | altered. | | | | | | **Q. What are some nursing | | | interventions for age related | | | changes in Susceptibility to | | | Infection?** | | | | | | \* Encourage pulmonary hygiene, | | | and help patient actively | | | maintain health and fitness. | | | Rationale: Regular pulmonary | | | hygiene and overall fitness help | | | maintain maximal functioning of | | | the respiratory system and | | | prevent illness. | | | | | | **Chest Wall** | | | | | | - \* Anteroposterior diameter | | | increases.\ | | | \ | | | \* Thorax becomes shorter.\ | | | \ | | | \* Progressive kyphoscoliosis | | | occurs.\ | | | \ | | | \* Chest wall compliance | | | (elasticity) decreases.\ | | | \ | | | \* Mobility may decrease. | | | | | | **Q. What are some nursing | | | interventions for age related | | | changes in the Chest Wall?** | | | | | | - Discuss the normal changes of | | | aging. Rationale: Patients | | | may be anxious because they | | | must work harder to breathe. | | | | | | - Discuss the need for | | | increased rest periods during | | | exercise. Rationale: Older | | | patients have less tolerance | | | for exercise. | | | | | | Top of Form | | | | | | Bottom of Form | | +===================================+===================================+ | **Pathophysiologic process of | **The following lung diseases are | | asthma (obstructive pulmonary | categorized as obstructive:** | | disease):** | | | | - Chronic obstructive pulmonary | | 1. Chronic airflow obstruction | disease (COPD) | | of the bronchi and | | | bronchioles d/t inflammation | - Chronic bronchitis. | | that causes | | | hyperresponsiveness, mucosal | - Asthma. | | edema, and mucous production. | | | | - Bronchiectasis. | | 2. Antigen/allergen binds to | | | dendritic cell→Dendritic cell | - Bronchiolitis. | | present antigen to type 2 | | | helper cells (Th2), but they | - Cystic fibrosis. | | have an excessive | | | response→T2h cells produce | **Asthma** is a chronic lung | | cytokines, like interleukin 4 | disease (no cure) that causes | | and 5→IL-4 eads to production | narrowing and inflammation of the | | of IgE antibodies (Type 1 | airways ([bronchi and | | hypersensitivity reaction), | bronchioles](https://www.register | | which coat mast cells Mast | ednursern.com/lung-anatomy-and-ph | | cells release histamine, | ysiology-review-notes/)) | | leukotrienes, prostaglandins | that leads to difficulty | | IL5 activate eosinophils, | breathing. | | which release more cytokines | | | and leukotrienes | **How does it happen?** | | | | | 3. In a type 1 hypersensitivity | First, let's talk about what | | reaction (IL-4 response), | should happen normally with | | smooth muscle around | breathing! Normally, when you | | bronchioles spasm and there | breathe in air, it travels down | | is increased mucous | through your upper airway to your | | secretion. Also, vascular | lower airway, which is the | | permeability increases, and | trachea, bronchi, bronchioles, | | more eosinophils enter from | and alveoli (where gas exchange | | the blood. The chemical | happens). The oxygen you breathe | | mediators from the immune | in crosses over into your blood | | cells that damage lung | stream and the carbon dioxide in | | endothelium. | your blood crosses over into the | | | airway to be exhaled. | | **How to use a peak flow meter to | | | help monitor the status of their | ***What is happening in patients | | asthma:** | with asthma?*** | | | | | - Patients should perform daily | In patients with asthma, the | | peak flow meter assessments | bronchi and bronchioles | | to self-manage their asthma | are ***chronically | | | inflamed*** and can become so | | - Peak flow meter assessments | inflamed that it leads to | | measure the amount of air you | an **[asthma | | can blow out in one fast | attack]**. This will | | breath | cause the patient to experience | | | wheezing, chest tightness, | | **Pharmacological interventions | shortness of breath, and | | for asthma:** | coughing. An asthma attack occurs | | | due to a trigger of some type | | - **Bronchodilators** | (discussed later). | | | | | : Short-acting beta2 agonists -- | **[Key Players of an Asthma | | albuterol | Attack:]** | | | | | -Rapid relief and prevention of | ***Bronchi and Bronchioles*** | | exercise-induced asthma | | | | - **What surrounds these | | -Watch for tachycardia and | structures?** Surrounding the | | tremors | bronchi and bronchioles **are | | | smooth muscles** that wrap | | :**Anticholinergic medication -- | around the airway. This | | ipratropium** | muscle helps with *dilating | | | and constricting* the airway. | | - Can provide rapid relief, but | | | also is long-acting and used | | | to prevent bronchospasms | | | | - **During an asthma attack, | | - Blocks the PNS, allowing the | these smooth muscles | | SNS to bronchodilate and | constrict. This causes chest | | decrease pulmonary secretions | tightness and difficulty | | | breathing.** | | - Watch for dry mouth increase | | | fluid intake, suck on hard | | | candies | | | | - **What is inside these | | - Monitor heart rate | structures?** Inside these | | | structures is a mucosa lining | | - Report headache, blurred | which contains special cells | | vision, or palpitations | called *goblet cells*. Goblet | | (signs of toxicity) | cells *produce mucous,* which | | | helps trap the irritants and | | :**Methylxanthines -- | bacteria we breathe in and | | theophylline** | prevent these substances from | | | entering further into our | | -Only used when other methods are | respiratory system. | | ineffective because there is a | | | narrow therapeutic range | | | | | | -Monitor blood levels | - During an asthma attack, the | | | mucosa becomes very inflamed | | -Adverse effects -- tachycardia, | (this narrows the | | nausea, diarrhea | airway...decreasing air flow | | | and air becomes trapped in | | :**Long-acting beta2 agonists -- | the alveoli). The goblet | | salmeterol** | cells (due to the | | | inflammatory response) | | -Prevention of asthma attacks | produce excessive amounts of | | | mucous. Hence, leading to | | :**Anti-inflammatory agents used | further decrease in air | | to decrease airway inflammation | flow: *coughing, | | and for prevention** | wheezing* (as air tries to | | | flow through the narrow | | -For anti-inflammatory agents, | airway and around the mucous | | watch for decreased immunity | it makes a musical whistling | | function and poor wound healing, | sound). | | hyperglycemia, fluid retention | | | and weight gain, aphthous lesions | - During this, air is becoming | | (canker sores); report black, | trapped in the alveoli. | | tarry stools | Therefore, gas exchange is | | | not taking place and low | | -Corticosteroids -- fluticasone, | amounts of oxygen are | | prednisone, budesonide | entering the blood (the | | | patient will have decreased | | -Take prednisone with meals | oxygen saturation) and carbon | | | dioxide is staying in the | | -Use spacer to prevent thrush; | blood (patient will have the | | oral rinse with baking soda and | buildup of | | water, then swallow QID | CO2.....[respiratory | | | acidosis](https://www.registe | | -Leukotriene antagonists -- | rednursern.com/respiratory-acidos | | montelukast | is-nclex-review-notes-with-mnemon | | | ic-quiz-acid-base-imbalance-notes | | -Mast cell stabilizers -- | /)). | | cromolyn | The patient will feel like | | | they can't exhale all the | | -Monoclonal antibodies- | way. | | omalizumab | | | | Now asthma attacks vary in | | (Can cause anaphylaxis) | severity among patients. It is | | | important for the patient to | | | recognize | | | the **triggers** and **early | | | signs and symptoms of a pending | | | asthma attack (discussed | | | below)**. These early signs and | | | symptoms are different for every | | | patient, but as the nurse you | | | will need to teach the patient | | | how to recognize them. They will | | | usually have these signs and | | | symptoms 1 to 2 days before an | | | attack. In addition, the patient | | | will need to follow an asthma | | | action plan created by the MD and | | | the patient. | | | | | | ***What is an asthma action | | | plan?*** It is a plan created to | | | help the patient control their | | | asthma based on the patient's | | | current signs and symptoms, along | | | with using a peak flow meter. The | | | asthma action plan has three | | | zones (green, yellow, and red) | | | and based on the patient's signs | | | and symptoms, they will treat | | | their asthma with the prescribed | | | medications. See a sample action | | | plan below. | | | | | | The cause of asthma is unknown | | | (may be genetic or environmental) | | | but certain "triggers" can lead | | | to an asthma attack: | | | | | | **What can trigger asthma?** | | | | | | - Environment: smoke, pollen, | | | pollution, perfumes, dander, | | | dust mites, pests | | | (cockroaches), cold and dry | | | air, mold | | | | | | - Body Issue: respiratory | | | infection, GERD, hormonal | | | shifts, exercise-induced | | | | | | - Intake of Certain Substances: | | | drugs (beta adrenergic | | | blockers that are | | | nonselective), NSAIDS, | | | aspirin, preservatives | | | (sulfites) | | | | | | ***How is it | | | diagnosed?*** pulmonary function | | | test (PFT) | | | | | | Another thing is to educate the | | | patient about **[early warning | | | signs:]** | | | | | | - - - - - - - | | | | | | **Signs and Symptoms of Asthma | | | Attack ** | | | | | | - - - - - | | | | | | Can progress to: where rescue | | | inhaler won't work, can't talk | | | easily, chest retractions | | | (stomach sucked in, chest | | | sticking out along with | | | collarbone with each | | | breath...this means the patient | | | is not getting enough air into | | | the lungs), cyanosis of the lips | | | and skin, sweaty...need medical | | | intervention fast!! | | | | | | **Nursing Interventions for | | | Asthma** | | | | | | **Presenting with an asthma | | | attack:** | | | | | | - - - - - - - - - | | | | | | | | | What is a **Peak Flow Meter:** it | | | shows how controlled a patient's | | | asthma is and if it is getting | | | worse (lets a patient know if an | | | attack is pending...several hours | | | to days before one) | | | | | | **How does the patient use a peak | | | flow meter?** As represented in | | | the picture above, the patient | | | will exhale as hard as they can | | | onto the device. The device will | | | then measure how much air was | | | exhaled out of the lungs. | | | | | | - - - How is | | | the ***[personal best peak | | | flow | | | meter]*** reading | | | figured out? The patient will | | | use the peak flow meter to | | | figure out their best peak | | | flow reading when their | | | asthma is**[ under good | | | control]**, and | | | measure it [once in the | | | morning and once at night for | | | 3 weeks | | | usually] and | | | record the numbers BEFORE | | | TAKING MEDICATION. ***The | | | highest number they obtain | | | over this period of time will | | | be their personal best | | | reading. *** | | | | | | - Then they will need to | | | continue to use the peak flow | | | meter at the same time every | | | day, either in the morning or | | | at night BEFORE TAKING | | | MEDICATION, and compare it | | | with the personal best | | | reading. If the reading is | | | 80% or less than their | | | personal best, they need to | | | follow the action plan | | | created with their doctor. | | | | | | You will be providing them with | | | education on how to follow their | | | prescribed asthma action plan | | | (quiz the patient to ensure they | | | understand how to follow the | | | plan). | | | | | | Help the patient identify | | | triggers (educate them on the | | | triggers), how to avoid (except | | | exercise-induced) and those early | | | warning signs. | | | | | | ***What if a trigger is | | | exercised-induced?*** The patient | | | doesn't need to quit exercising | | | (important for overall health). | | | To help decrease the chances of | | | an attack they can: | | | | | | - - - - | | | | | | **Medications used to treat | | | Asthma** | | | | | | **[Bronchodilators: ] | | | **opens | | | the airways to increase air | | | flow....different types | | | | | | ***Bronchodilators types used for | | | Asthma***: Beta-agonists\* and | | | Anticholingerics\*, Theophylline | | | | | | \*commonly given as inhaled | | | routes for asthma...theophylline | | | is oral | | | | | | [*Short-acting beta agonist | | | (Albuterol*):] | | | | | | - - | | | | | | *[Long-acting beta agonists | | | (Salmeterol, | | | Symbicort]...this | | | drug is a combination of a | | | long-acting beta agonist AND | | | corticosteroid*)*:* | | | | | | - | | | | | | \*\*\*\*Side effects of these | | | medications: tachycardia, feeling | | | nervous/jittery, monitor heart | | | rhythm for dysrhythmia | | | | | | *[Anticholinergics:]* | | | | | | - - - | | | | | | *[Theophylline:]* giv | | | en | | | PO | | | | | | - - | | | | | | \*\*\*\*\*Always administer | | | the **bronchodilator FIRST** and | | | then **5 minutes later the | | | corticosteroid.** | | | | | | If not responding to treatment, | | | may need intubation and | | | mechanical ventilation. | | | | | | **[Anti-inflammatories:]{.underli | | | ne}** decreases | | | swelling and mucus | | | production...used as long-term | | | treatment to control asthma not | | | an acute attack. | | | | | | **Anti-inflammatories used to | | | treat asthma | | | include:** "Corticosteroids, | | | Leukotriene Modifiers, | | | Immunomodulators, Cromolyn" | | | | | | *[Inhaled | | | corticosteroids:]* "F | | | luticasone", | | | "Budesonide", "Beclomethasone" | | | | | | - - - | | | | | | *[Leukotriene Modifiers | | | (oral):]* "Montelukas | | | t" | | | | | | - | | | | | | *[Immunomodulator | | | (subq):]* "Omalizumab | | | " | | | | | | - - - - - | | | | | | *[Nonsteroidal | | | Anti-Allergy:]* "Crom | | | olyn" | | | (inhaled) | | | | | | - - - | +-----------------------------------+-----------------------------------+ | | | +-----------------------------------+-----------------------------------+ | **Identify risk factors for COPD | | | when obtaining a history from a | | | patient:** | | | | | | 1. 2. 3. 4. 5. 6. 7. | | +-----------------------------------+-----------------------------------+ | **Clinical manifestations of | **What is happening in | | emphysema:** | emphysema?** | | | | | 1. 2. 3. 4. 5. | Main issue is with **damage to | | | the alveolar sac** (loses | | | elasticity...becomes floppy and | | | doesn't inflate and deflate | | | properly) leading to | | | "air-trapping". | | | | | | This condition also leads | | | to **hyperventilation** (puffing | | | to breathe...compensatory | | | mechanism) and pink | | | complexion (they maintain a | | | relatively normal oxygen level | | | due to rapid breathing) rather | | | than cyanosis as in chronic | | | bronchitis. Patients with | | | emphysema are sometimes | | | called **"pink puffers"**. | | | | | | **Major Signs & Symptoms:** | | | | | | - - - - - | | | | | | **Pathophysiology of Emphysema:** | | | | | | In emphysema, the ***alveoli sacs | | | lose their ability to inflate and | | | deflate*** due to an inflammatory | | | response in the body. Due to the | | | damage to the alveoli sac, there | | | is *[**damage to the capillary | | | bed** ]*so there will | | | a** matched V/Q | | | defect** (ventilation and | | | perfusion both poor...hence they | | | match). So, areas of low | | | ventilation (V) have poor | | | perfusion (Q). | | | | | | Because the sac cannot deflate or | | | inflate, inhaled **air starts to | | | get trapped** in the sacs and | | | this | | | causes major **hyperinflation of | | | the lungs** because the patient | | | is retaining so much volume. | | | | | | Hyperinflation causes | | | the **diaphragm to flatten**. The | | | diaphragm plays a huge role in | | | helping the patient breathe | | | effortlessly in and out. | | | Therefore, in order to fully | | | exhale, the patient starts to | | | hyperventilate and use accessory | | | muscles to get the air out now. | | | This leads to the **barrel chest | | | look** and during inspection it | | | may be noted there is | | | an**[ INCREASED | | | ANTEROPOSTERIOR] [DIA | | | METER]**[.]{.underlin | | | e} | | | | | | The damage in the sacs cause the | | | body to keep **high carbon | | | dioxide levels and low blood | | | oxygen levels (respiratory | | | acidosis)**. Inhaled oxygen will | | | not be able to enter into the | | | sacs for gas exchange and carbon | | | dioxide won't leave the cells to | | | be exhaled. | | | | | | The body tries to **compensate by | | | causing | | | hyperventilation** (increasing | | | the respiratory rate...hence | | | puffing) and the patient will | | | have less hypoxemia "pink | | | complexion" than chronic | | | bronchitis (who have the | | | cyanosis) because pink | | | puffers keep their oxygen level | | | just where it needs to be from | | | hyperventilation. | +-----------------------------------+-----------------------------------+ | **Cor pulmonale (complications of | **Nursing Interventions: Cor | | COPD):** | Pulmonale** | | | | | Because of the decreased alveolar | 1. 2. 3. 4. 5. 6. 7. 8. 9 | | surface area, pulmonary |. 10. | | arterioles vasoconstrict to | | | divert blood flow away from the | | | impaired areas. The | | | vasoconstriction of these | | | pulmonary arterioles causes | | | increased resistance and | | | pulmonary HTN. The RV struggles | | | to pump blood into the pulmonary | | | circulation causing RV | | | hypertrophy and the thick muscle | | | wall of the RV decreases the | | | amount of space for filling the | | | RV leading to diastolic HF. | | | | | | or pulmonale is a disorder of the | | | structure and function of the | | | right side of the heart caused by | | | a disease of the respiratory | | | system, primarily pulmonary | | | hypertension. Cor pulmonale is | | | estimated to cause approximately | | | 5% to 7% of all types of heart | | | disease in adults, and chronic | | | obstructive pulmonary disease | | | (COPD) due to chronic bronchitis | | | or emphysema is the causative | | | factor in more than 50% of people | | | with cor pulmonale. While it is | | | difficult to know how many people | | | in the United States have cor | | | pulmonale, experts estimate that | | | 15 million people have the | | | condition. The right ventricle is | | | a thin-walled chamber as compared | | | to the left ventricle and is more | | | responsive to volume changes. | | | With increased resistance in the | | | pulmonary system, the right side | | | of the heart works harder, the | | | systolic pressure rises, the | | | right ventricle dilates, and | | | ultimately, right-sided heart | | | failure occurs. | | | | | | A number of physiological changes | | | lead to poor gas exchange. | | | Alveolar wall damage results in | | | anatomic reduction of the | | | pulmonary vascular bed as the | | | number of pulmonary capillaries | | | are reduced and the vasculature | | | stiffens from pulmonary fibrosis. | | | Constriction of the pulmonary | | | vessels and hypertrophy of vessel | | | tissue are caused by alveolar | | | hypoxia and hypercapnia. | | | Abnormalities of the ventilatory | | | mechanics bring about compression | | | of pulmonary capillaries. Cor | | | pulmonale accounts for | | | approximately 25% of all types of | | | heart failure. Complications of | | | cor pulmonale include | | | biventricular heart failure, | | | hepatomegaly, pleural effusion, | | | and thromboembolism related to | | | polycythemia. | | | | | | **Causes** | | | | | | In addition to COPD, acute cor | | | pulmonale is produced by a number | | | of other pulmonary and pulmonary | | | vascular disorders but primarily | | | by acute respiratory distress | | | syndrome (ARDS) and pulmonary | | | embolism. Two factors in ARDS | | | lead to right ventricular | | | overload: the disease itself and | | | the high transpulmonary pressures | | | that are needed to treat ARDS | | | with mechanical ventilation. In | | | the United States, approximately | | | 25,000 sudden deaths occur per | | | year from heart failure | | | associated with pulmonary emboli. | | | Other conditions can also lead to | | | cor pulmonale. Respiratory | | | insufficiency---such as chest | | | wall disorders, upper airway | | | obstruction, obesity | | | hypoventilation syndrome, and | | | chronic mountain sickness caused | | | by living at high altitudes---can | | | also lead to the chronic forms of | | | the disease. It can also develop | | | from lung tissue loss after | | | extensive lung surgery. A | | | contributing factor is chronic | | | hypoxia, which stimulates | | | erythropoiesis, thus increasing | | | blood viscosity. Cigarette | | | smoking is also a risk factor. | | +-----------------------------------+-----------------------------------+ | 1. 2. 3. 4. 5. 6. 7. | | | | | | | | | | | | 1. 2. 3. 4. | | | | | | | | | | | | 1. 2. 3. 4. 5. 6. | | | | | | | | | | | | 1. 2. 3. 4. 5. 6. 7. 8. | | | | | | | | | | | | 1. 2. 3. 4. 5. 6. 7. | | | | | | | | | | | | 5. | | +-----------------------------------+-----------------------------------+ | **Introduction to Tuberculosis** | | | | | | Mycobacterium is an acid-fast, | | | aerobic, slow-growing bacillus | | | that is resistant to drying and | | | many disinfectants. However, the | | | microbes can survive in dried | | | sputum for weeks. | | | | | | The TB bacterium is spread from | | | person to person through droplets | | | from coughing or sneezing. People | | | who live with or spend time with | | | an infected person may be at risk | | | for developing TB. The bacteria | | | then travel from the lungs | | | through the bloodstream to other | | | organs, where they can cause | | | damage over time if not | | | appropriately treated with | | | antibiotics. | | | | | | There are two stages of | | | tuberculosis: primary and | | | secondary (or reinfection). | | | Primary occurs when the | | | microorganisms first enter the | | | lungs. The TB may spread to other | | | organs with the bacilli migrating | | | to lymph nodes, which can rapidly | | | disseminate into the circulation | | | and to other tissues, such as | | | bone or kidney. | | +-----------------------------------+-----------------------------------+