NUR 265 Exam 2 Study Guide
Lungs Physiology
2 Pleural, 1 attached to outside of lungs and 1 attached to inside of ribs.
Space between the 2 pleural is negative to atmosphere
When inhale becomes more positive and atmosphere more negative. Exhaling is passive
Most of lower lobes are posterior, must listen to lungs posteriorly
Breath sounds
o Bronchial: High pitched & loud, normal in tracheal & larynx
o Bronchovesicular: Moderate pitched & amplitude, normal over major bronchi
o Vesicular: Low pitched & soft, like wind through trees, normal in lower lung fields where smaller bronchioles &
alveoli are.
Pulmonary Emboli (P 603)
Occlusion of portion of pulmonary artery by a blood clot – from venous circulation – lower extremities or heart.
Causes ventilation-perfusion mismatch (V/Q) – Ventilated alveoli no longer perfused due to clotted artery.
Risk Factors
o Venous stasis (w/prolonged immobility); Central venous catheters; Surgery (NPO, dehydrated, immobilized
pts); Obesity; Advanced age; Hypercoagulability (Platelets >400K and not enough fluids; sticky blood); Hx of
thromboembolism.
o Greatest r/f in the young is the combo of smoking and hormone based contraceptives.
Nursing Assessment Findings
o Respiratory Classic Manifestations (Hypoxia drives all s/s)
Dyspnea (sudden onset); Chest pain (sharp & stabbing); Apprehension, restlessness; Feeling of
impending doom; Cough; Hemoptysis (blood in sputum).
o Respiratory Signs
Pleural friction rub (scratching sounds from pleura rubbing together & pain on deep inspiration);
Tachypnea; Crackles; S3 or S4; Diaphoresis; Low grade fever; Petechiae over chest and axillae;
Decreased arterial oxygen saturation (SaO2)
o Many pts w/ a PE do not have “classic” sx (i.e. hypoxia), but instead have vague sx resembling the flu (n/v &
general malaise)
o Cardiac Manifestations
Decreased tissue perfusion: tachycardia, JVD, Syncope (loss of consciousness), Cyanosis, &
Hypotension.
o In patients with r/f for PE, JVD (RSHF), syncope (decreased blood flow to brain), cyanosis (severe hypoxia) and
hypotension together, NEED RAPID RESPONSE TEAM CALLED. HAVE HELP ON WAY B4 O2 APPLIED
o When pt has sudden onset of dyspnea, chest pain, and/or hypotension, immediately notify Rapid Response
Team. Reassure pt. and elevate HOB. Prepare for O2 therapy and ABG analysis
o Saddle Emboli –
Medical Dx
o Chest X-ray – May show PE if large but will help r/o other things
o CT scan – Most often used to dx PE
o TEE (Transesophageal Echocardiography) – See if there are clots in the atria
o Ventilation Perfusion scan (V/Q)
Considered if pt is allergic to contrast dye done w/CT scan
Radioactive substance to see if air is getting into the alveoli; injected into blood to look at clot and can
also detect pneumothorax. Done 2x
o ABGs
Respiratory Alkalosis FIRST from hyperventilation
THEN Respiratory Acidosis from shunting
Shunting of blood from the RS of the heart to the LS w/o picking up O2 form lungs – causes
PaCO2 level to rise resulting in respiratory acidosis)
LATER Metabolic Acidosis & lactic acid buildup from tissue hypoxia
This study source was downloaded by 100000849580189 from CourseHero.com on 07-18-2023 03:21:16 GMT -05:00
https://www.coursehero.com/file/15210175/Nur-265-Exam-2-Study-Guide/
, Even if ABGs & Pulse Ox shows hypoxemia it is not enough to dx PE alone as PE is not the only cause of
hypoxemia.
Medical Management
o GIVE O2, IV FLUIDS, INOTROPES (DOBUTAMINE/MILRINONE)
Oxygen therapy to maintain O2 sat at 95% or patient baseline
Hypotension - Tx w/ IV fluids (isotonic) & Inotropes (Dobutamine/Milrinone, make heart contract more
forcefully); vasopressors (norepi, epi, dopamine) when hypotension persists after fluids.
o Anticoagulation w/ Heparin drip – Goal is PTT 1.5-2.5 x normal (60-70 sec) = 90-175 sec
Minimize growth of existing clots and prevent new ones
Antidote Protamine Sulfate
Do not use w/salicylates (Aspirin)
o Convert to Warfarin when stable – On 3rd day of Heparin use, overlap – INR target 2-3 (0.9-1.2 normal)
Antidote – Vit K – phytonadione (Mephyton)
Teach pts to avoid foods high in K (leafy dark green vegis, herbs, spring onions, Brussel sprouts,
broccoli, cabbage, asparagus, potatoes, & winter squash).
o Enoxaparin or dalteparin
o Fibrinolytic (tPA) to tx massive PE or hemodynamic instability
Antidotes – clotting factors, FFP, & aminocaproic acid (Amicar)
Dissolve the clot itself
o Embolectomy – surgical removal of the embolus – When tPA can’t be used or for massive PE w/shock
o Inferior Vena Cava Filter – to prevent DVTs from moving to the lungs
**Bleeding precautions with all blood thinners
o Prevent injury to pt on anticoagulation therapy
Use lift sheet; firm pressure on needle stick for 10 minutes; Apply ice to trauma areas; Avoid trauma to
rectal tissues; no razor (electric only); soft-bristled toothbrush; NO floss; Not blow nose forcefully;
shoes with firm soles; Assess IV sites q4 hrs for bleeding, measure abd girth q8 hrs – internal bleeding
Nursing Management
o Monitor for hypoxemia & respiratory compromise every 1-2 hrs.
VS, lung sounds, cardiac & respiratory status, & urine output (bc hypotensive can cause AKI)
o Elevate HOB to high fowlers if BP tolerates.
o Obtain venous access and monitor heparin drip/LMWH/Coumadin
o Pain and anxiety management w/morphine (vasodilator) – O2 1 st then other things b4 morphine.
Communication is critical in allaying anxiety. Acknowledge the anxiety & pt perception of a life-
threatening situation. Stay with them, speak calmly, and clearly, providing assurances.
o Bleeding precautions, oral care – especially if mouth breather.
Prevention Measures
o Measures that prevent venous stasis and VTE
o Passive and active ROM for postop & immobilized pts
o Postop ambulation ASAP
o SCDs or Plexipulse compression – for prevention, not for active DVT
o Pt repositioning q2 hrs
o Low dose anticoagulant & antiplatelet meds
o Smoking cessation (especially females on hormone based contraceptives) bc increases risk for DVTs
o Traveling – drink plenty of H2O, change positions, avoid crossing legs, get up and move every 1hr for 5 min.
NANDA Diagnoses
o Impaired Gas Exchange; Acute Pain, Anxiety; Risk for Bleeding (when on treatment)
Pleural Effusion (P 504-505)
Collection of fluid (too much) in the pleural space – clear transudative, or exudative (outside the lungs)
o Cleat transudative – similar to fluid normally present in pleura space
o Exudative – Excess protein, blood, or evidence of inflammation or infection (white, green, cloudy is bad)
Can cause pleurisy sx
o was
This study source Pleural friction
downloaded rub, scratching
by 100000849580189 fromsounds causedonby
CourseHero.com inflamed
07-18-2023 pleura
03:21:16 rubbing
GMT -05:00 together, pain on deep inspiration.
https://www.coursehero.com/file/15210175/Nur-265-Exam-2-Study-Guide/
Lungs Physiology
2 Pleural, 1 attached to outside of lungs and 1 attached to inside of ribs.
Space between the 2 pleural is negative to atmosphere
When inhale becomes more positive and atmosphere more negative. Exhaling is passive
Most of lower lobes are posterior, must listen to lungs posteriorly
Breath sounds
o Bronchial: High pitched & loud, normal in tracheal & larynx
o Bronchovesicular: Moderate pitched & amplitude, normal over major bronchi
o Vesicular: Low pitched & soft, like wind through trees, normal in lower lung fields where smaller bronchioles &
alveoli are.
Pulmonary Emboli (P 603)
Occlusion of portion of pulmonary artery by a blood clot – from venous circulation – lower extremities or heart.
Causes ventilation-perfusion mismatch (V/Q) – Ventilated alveoli no longer perfused due to clotted artery.
Risk Factors
o Venous stasis (w/prolonged immobility); Central venous catheters; Surgery (NPO, dehydrated, immobilized
pts); Obesity; Advanced age; Hypercoagulability (Platelets >400K and not enough fluids; sticky blood); Hx of
thromboembolism.
o Greatest r/f in the young is the combo of smoking and hormone based contraceptives.
Nursing Assessment Findings
o Respiratory Classic Manifestations (Hypoxia drives all s/s)
Dyspnea (sudden onset); Chest pain (sharp & stabbing); Apprehension, restlessness; Feeling of
impending doom; Cough; Hemoptysis (blood in sputum).
o Respiratory Signs
Pleural friction rub (scratching sounds from pleura rubbing together & pain on deep inspiration);
Tachypnea; Crackles; S3 or S4; Diaphoresis; Low grade fever; Petechiae over chest and axillae;
Decreased arterial oxygen saturation (SaO2)
o Many pts w/ a PE do not have “classic” sx (i.e. hypoxia), but instead have vague sx resembling the flu (n/v &
general malaise)
o Cardiac Manifestations
Decreased tissue perfusion: tachycardia, JVD, Syncope (loss of consciousness), Cyanosis, &
Hypotension.
o In patients with r/f for PE, JVD (RSHF), syncope (decreased blood flow to brain), cyanosis (severe hypoxia) and
hypotension together, NEED RAPID RESPONSE TEAM CALLED. HAVE HELP ON WAY B4 O2 APPLIED
o When pt has sudden onset of dyspnea, chest pain, and/or hypotension, immediately notify Rapid Response
Team. Reassure pt. and elevate HOB. Prepare for O2 therapy and ABG analysis
o Saddle Emboli –
Medical Dx
o Chest X-ray – May show PE if large but will help r/o other things
o CT scan – Most often used to dx PE
o TEE (Transesophageal Echocardiography) – See if there are clots in the atria
o Ventilation Perfusion scan (V/Q)
Considered if pt is allergic to contrast dye done w/CT scan
Radioactive substance to see if air is getting into the alveoli; injected into blood to look at clot and can
also detect pneumothorax. Done 2x
o ABGs
Respiratory Alkalosis FIRST from hyperventilation
THEN Respiratory Acidosis from shunting
Shunting of blood from the RS of the heart to the LS w/o picking up O2 form lungs – causes
PaCO2 level to rise resulting in respiratory acidosis)
LATER Metabolic Acidosis & lactic acid buildup from tissue hypoxia
This study source was downloaded by 100000849580189 from CourseHero.com on 07-18-2023 03:21:16 GMT -05:00
https://www.coursehero.com/file/15210175/Nur-265-Exam-2-Study-Guide/
, Even if ABGs & Pulse Ox shows hypoxemia it is not enough to dx PE alone as PE is not the only cause of
hypoxemia.
Medical Management
o GIVE O2, IV FLUIDS, INOTROPES (DOBUTAMINE/MILRINONE)
Oxygen therapy to maintain O2 sat at 95% or patient baseline
Hypotension - Tx w/ IV fluids (isotonic) & Inotropes (Dobutamine/Milrinone, make heart contract more
forcefully); vasopressors (norepi, epi, dopamine) when hypotension persists after fluids.
o Anticoagulation w/ Heparin drip – Goal is PTT 1.5-2.5 x normal (60-70 sec) = 90-175 sec
Minimize growth of existing clots and prevent new ones
Antidote Protamine Sulfate
Do not use w/salicylates (Aspirin)
o Convert to Warfarin when stable – On 3rd day of Heparin use, overlap – INR target 2-3 (0.9-1.2 normal)
Antidote – Vit K – phytonadione (Mephyton)
Teach pts to avoid foods high in K (leafy dark green vegis, herbs, spring onions, Brussel sprouts,
broccoli, cabbage, asparagus, potatoes, & winter squash).
o Enoxaparin or dalteparin
o Fibrinolytic (tPA) to tx massive PE or hemodynamic instability
Antidotes – clotting factors, FFP, & aminocaproic acid (Amicar)
Dissolve the clot itself
o Embolectomy – surgical removal of the embolus – When tPA can’t be used or for massive PE w/shock
o Inferior Vena Cava Filter – to prevent DVTs from moving to the lungs
**Bleeding precautions with all blood thinners
o Prevent injury to pt on anticoagulation therapy
Use lift sheet; firm pressure on needle stick for 10 minutes; Apply ice to trauma areas; Avoid trauma to
rectal tissues; no razor (electric only); soft-bristled toothbrush; NO floss; Not blow nose forcefully;
shoes with firm soles; Assess IV sites q4 hrs for bleeding, measure abd girth q8 hrs – internal bleeding
Nursing Management
o Monitor for hypoxemia & respiratory compromise every 1-2 hrs.
VS, lung sounds, cardiac & respiratory status, & urine output (bc hypotensive can cause AKI)
o Elevate HOB to high fowlers if BP tolerates.
o Obtain venous access and monitor heparin drip/LMWH/Coumadin
o Pain and anxiety management w/morphine (vasodilator) – O2 1 st then other things b4 morphine.
Communication is critical in allaying anxiety. Acknowledge the anxiety & pt perception of a life-
threatening situation. Stay with them, speak calmly, and clearly, providing assurances.
o Bleeding precautions, oral care – especially if mouth breather.
Prevention Measures
o Measures that prevent venous stasis and VTE
o Passive and active ROM for postop & immobilized pts
o Postop ambulation ASAP
o SCDs or Plexipulse compression – for prevention, not for active DVT
o Pt repositioning q2 hrs
o Low dose anticoagulant & antiplatelet meds
o Smoking cessation (especially females on hormone based contraceptives) bc increases risk for DVTs
o Traveling – drink plenty of H2O, change positions, avoid crossing legs, get up and move every 1hr for 5 min.
NANDA Diagnoses
o Impaired Gas Exchange; Acute Pain, Anxiety; Risk for Bleeding (when on treatment)
Pleural Effusion (P 504-505)
Collection of fluid (too much) in the pleural space – clear transudative, or exudative (outside the lungs)
o Cleat transudative – similar to fluid normally present in pleura space
o Exudative – Excess protein, blood, or evidence of inflammation or infection (white, green, cloudy is bad)
Can cause pleurisy sx
o was
This study source Pleural friction
downloaded rub, scratching
by 100000849580189 fromsounds causedonby
CourseHero.com inflamed
07-18-2023 pleura
03:21:16 rubbing
GMT -05:00 together, pain on deep inspiration.
https://www.coursehero.com/file/15210175/Nur-265-Exam-2-Study-Guide/
