During the initial assessment of a patient suspected of having a pulmonary embolism, which of the following findings would indicate stability in the patient's condition?

B) Oxygen saturation of 95% on room air

C) Respiratory rate of 30 breaths per minute

What is the most likely reason for ordering a D-dimer test for this patient?

B) To assess for the presence of a blood clot

C) To determine liver enzyme levels

D) To measure the patient's blood glucose level

Which of the following actions is most important for the nurse to take when caring for a patient with a newly diagnosed small pulmonary embolism?

A) Encourage deep breathing exercises.

C) Monitor blood glucose levels.

What is the primary purpose of administering anticoagulation therapy to a patient with a confirmed pulmonary embolism?

B) To prevent the formation of new clots

A) To dissolve the existing clot

B) To prevent the formation of new clots

C) To increase oxygenation in the blood

D) To reduce pain and inflammation

What is the primary nursing intervention to prevent venous stasis in a patient receiving anticoagulation therapy?

B) Walk the patient around her room and the ward under supervision

A) Encourage the patient to drink at least 2 liters of water daily

B) Walk the patient around her room and the ward under supervision

C) Monitor the patient's blood pressure every 4 hours

D) Educate the patient about her medications and how they work

What is the primary reason for monitoring the INR level in a patient receiving anticoagulation therapy?

C) To determine the effectiveness of anticoagulation therapy

A) To assess the risk of infection

C) To determine the effectiveness of anticoagulation therapy

D) To measure the patient's hydration status

What is the most important reason for the nurse to emphasize mobility and hydration in this patient receiving anticoagulation therapy?

B) To prevent further clot formation

A) To improve respiratory function

B) To prevent further clot formation

C) To enhance the effectiveness of medication

Pulmonary embolism - Nursing Case Study

Pathophysiology

• Primary mechanism: A pulmonary embolism (PE) occurs when a blood clot, typically from the deep veins of the legs (deep vein thrombosis), travels through the bloodstream and lodges in the pulmonary arteries, blocking blood flow to part of the lung.

• Secondary mechanism: This blockage reduces the oxygen exchange in the lungs, leading to decreased oxygen levels in the blood, which can strain the heart as it works harder to pump blood through narrowed or blocked vessels.

• Key complication: The sudden obstruction can lead to increased pressure in the right side of the heart, potentially causing right heart failure and, if severe, can lead to shock or death if not promptly treated.

Patient Profile

Demographics:

45-year-old female, office manager

History:

• Key past medical history: History of deep vein thrombosis 2 years ago

• Current medications: Oral contraceptive pill, occasional ibuprofen for headaches

• Allergies: No known drug allergies

Current Presentation:

• Chief complaint: Sudden onset of mild shortness of breath

• Key symptoms: Mild chest discomfort, slight cough, no hemoptysis

• Vital signs: Blood pressure 120/80 mmHg, heart rate 88 bpm, respiratory rate 18 breaths per minute, temperature 98.6°F, oxygen saturation 95% on room air

Section 1

Initial Assessment Findings:

Upon arrival at the emergency department, the patient was assessed by the nursing team. The physical examination revealed that the patient appeared anxious but was alert and oriented to person, place, and time. Her skin was warm and dry, and there were no signs of cyanosis. Lung auscultation showed clear breath sounds bilaterally with no wheezing or crackles, despite her complaint of mild shortness of breath. Cardiovascular assessment indicated a regular heart rate and rhythm with no murmurs or gallops. The patient's extremities were free of edema, but there were mild varicose veins noted on her lower legs.

As part of the initial assessment, the nurse performed a focused respiratory assessment, noting that the patient exhibited a slightly increased respiratory effort, though her respiratory rate remained stable at 18 breaths per minute. Capillary refill was less than two seconds, and peripheral pulses were strong and equal bilaterally. In collaboration with the healthcare team, the nurse anticipated the need for further diagnostic testing, such as a D-dimer test and a chest CT angiography, to confirm the presence of a pulmonary embolism and to assess its severity. The patient's stable vital signs and oxygen saturation of 95% on room air suggested that she was in the early stages of a pulmonary embolism, allowing for a timely intervention to prevent further complications.

Section 2

New Diagnostic Results:

Following the initial assessment, the nursing team coordinated with the healthcare providers to expedite the necessary diagnostic tests. The D-dimer test results returned elevated, which further suggested the potential presence of a thrombotic event. As anticipated, a chest CT angiography was performed to provide a more definitive evaluation. The imaging results confirmed the presence of a small pulmonary embolism located in the right lower lobe. This finding aligned with the patient's mild respiratory symptoms and her stable condition, indicating that the embolism was indeed in its early stage without immediate life-threatening implications.

The patient was informed of the diagnosis, and the nursing team provided education about the condition, emphasizing the importance of adhering to the treatment plan. The healthcare team initiated a low-dose anticoagulation therapy to prevent further clot formation, choosing a regimen that balanced efficacy with the patient's stable status and minimal complications. The nursing staff monitored the patient closely for any changes in her condition, particularly for signs of increased respiratory distress or bleeding, which could indicate complications from anticoagulation therapy.

Through collaborative care and vigilant monitoring, the patient remained stable, with her vital signs showing no significant changes: blood pressure was 118/76 mmHg, heart rate at 78 beats per minute, and respiratory rate steady at 18 breaths per minute. Oxygen saturation was maintained at 95% on room air. The nursing team engaged in regular patient education, reinforcing the importance of ambulation, hydration, and compliance with medication to ensure optimal recovery. The patient's understanding and cooperation were crucial in her continued stability, setting a positive trajectory for her recovery journey.

Section 3

Response to Interventions

Over the next 24 hours, the patient responded positively to the anticoagulation therapy. The nursing team continued to monitor her closely, checking for any signs of bleeding, a potential complication of the treatment. During this period, the patient reported feeling slightly less short of breath, which was a reassuring sign that the therapy was effective. Her vital signs remained stable, with blood pressure at 116/74 mmHg, heart rate at 76 beats per minute, and respiratory rate at 18 breaths per minute. Oxygen saturation continued to be steady at 96% on room air, indicating no further deterioration in her respiratory status.

The nursing team utilized this stable period to reinforce education about lifestyle modifications that could aid in her recovery and prevent future embolic events. They emphasized the importance of maintaining adequate hydration, encouraging the patient to drink at least 2 liters of water daily unless otherwise contraindicated. Ambulation was encouraged, and the patient was walked around her room and the ward under supervision to prevent venous stasis, which could contribute to further clot formation. The patient was compliant and showed eagerness to participate in her care, asking questions about her medications and how they worked to prevent additional clots.

To ensure comprehensive care, laboratory tests such as a complete blood count (CBC) and coagulation profile were ordered to monitor the patient's response to anticoagulation and to detect any potential adverse effects. Results showed a slightly elevated INR at 1.3, which was within an acceptable range for the low-dose therapy initiated. Her hemoglobin and platelet count remained within normal limits, further indicating that no significant bleeding was occurring. The nursing team documented these findings and communicated them with the healthcare providers, ensuring a coordinated approach to her ongoing treatment and care. This proactive management allowed the patient to proceed with her recovery smoothly, setting the stage for potential discharge planning if her condition continued to improve.

Section 4

As the patient continued her steady progress over the next 48 hours, the nursing team remained vigilant for any new complications. However, during a routine assessment, the patient mentioned experiencing mild discomfort in her left calf. Understanding the importance of investigating any new symptoms, the nurse conducted a thorough examination of the lower extremities. Upon inspection and palpation, there was slight swelling and tenderness noted in the left calf, with the presence of a mild warmth compared to the right leg. These findings raised a suspicion of deep vein thrombosis (DVT), a known risk associated with pulmonary embolism.

In response to these new symptoms, the healthcare provider was promptly notified, and a Doppler ultrasound of the lower extremities was ordered to confirm the presence of a DVT. The results of the ultrasound revealed a small, non-occlusive thrombus in the left popliteal vein. Given the early detection and the patient's stable overall condition, the treatment plan was adjusted to include a possible increase in the anticoagulation dosage, pending further evaluation by the medical team. The patient was informed about the new findings and the plan to address the clot, reinforcing the importance of continued mobility and hydration to aid in resolving the thrombus.

The nursing team continued to provide education about the signs and symptoms of DVT and the importance of reporting any changes immediately. They also coordinated with the physical therapy department to introduce a gentle exercise regimen that would support circulation without putting undue strain on the patient. These proactive measures aimed to prevent further complications while ensuring the patient's comfort and understanding of her condition. The collaborative approach among the healthcare team and the patient's active participation in her care were crucial in managing this minor complication and maintaining the trajectory towards recovery and eventual discharge.

Section 5

As the patient continued to receive care, the nursing team diligently monitored her condition, paying close attention to her response to the adjusted anticoagulation therapy. During a routine assessment conducted on the third day, the nurse noted that the patient's vital signs remained stable, with a blood pressure of 118/76 mmHg, heart rate of 78 beats per minute, respiratory rate of 18 breaths per minute, and oxygen saturation consistently at 98% on room air. The patient reported feeling more at ease and expressed confidence in the care plan. However, she did mention a slight increase in fatigue, which prompted the nurse to perform a focused assessment.

Upon examination, the nurse found that the patient's left calf showed slight improvement, with reduced tenderness and warmth compared to the previous day. Encouraged by these findings, the nursing team continued to emphasize the importance of mobility and hydration. Lab results drawn earlier that morning showed an INR level of 2.3, which was within the therapeutic range for anticoagulation therapy. The team considered this a positive indicator, reinforcing the effectiveness of the current treatment regimen.

The physical therapist visited the patient to assess her progress and introduced a tailored exercise program designed to enhance circulation and prevent further clot formation. The patient engaged in gentle leg exercises under supervision, reporting no new discomfort or pain. Encouraged by her steady progress, the healthcare team maintained open communication with the patient, ensuring she understood the significance of adhering to her exercise regimen and medication plan. This collaborative effort continued to support the patient's recovery, with the goal of preparing her for a safe discharge in the coming days.