NURS 505 Week 4 Discussion Board Forum 1 on Cardiac and Pulmonary Assessment Example

Discussion Board Forum 1: Using the Cardiovascular and Respiratory Examination to Sort Out Breathlessness

NURS 505 Advanced Health / Physical Assessment, Discussion Board Forum 1

Thread by [Student Name]

The patient example and the classmates replied to are composites written for a model discussion.

A 67-year-old retired machinist comes to clinic with three weeks of worsening breathlessness. The patient smoked for 30 years, quit eight years ago, and also has hypertension. Breathlessness could come from the heart, the lungs or both, and while a chest x-ray, natriuretic peptide level and echocardiogram will help, the history and examination can narrow the question before any test is ordered.

The history comes first. Breathlessness that worsens lying flat and wakes the patient at night, along with ankle swelling and weight gain, points toward heart failure. A chronic morning cough with sputum, a long smoking history and breathlessness that has crept up over years, with flares during colds, points toward chronic obstructive pulmonary disease. Our patient reports needing two pillows, waking once a night short of breath and a five-pound weight gain, which already favors a cardiac cause.

The examination then tests that impression. Bickley et al. (2021) describe the cardiac findings to look for: jugular venous pressure measured at the angle of the jaw with the trunk raised partway, usually to between 30 and 45 degrees, a laterally displaced apical impulse, a third heart sound, low-pitched and easiest to catch with the bell at the apex while the patient lies turned toward the left, crackles at both lung bases, and pitting edema of the ankles. The pulmonary findings point the other way: an increased anteroposterior chest diameter, hyperresonance to percussion, distant breath sounds, a prolonged expiratory phase and wheezes. In our patient, a jugular venous pressure of 10 cm, bibasilar crackles, an S3 and 2+ ankle edema make heart failure the leading diagnosis. The S3 is a quiet sound, but in an adult over 40 it carries more weight than almost any other single finding. A systematic review of breathless patients in emergency departments found that a third heart sound had one of the highest positive likelihood ratios for heart failure of any examination finding, though it was often absent (Wang et al., 2005).

The limits matter as much as the findings. Crackles also occur in pneumonia and pulmonary fibrosis, edema has many causes, an S3 is easy to miss in a noisy room, and patients often have both diseases, since smoking damages the heart and the lungs. The examination therefore guides testing rather than replacing it: here it supports ordering a natriuretic peptide, an electrocardiogram and an echocardiogram promptly.

What this case teaches a future nurse practitioner is that minutes spent on a careful history and examination makes testing faster and more focused, and it protects against anchoring on one diagnosis because of a single remembered detail, such as the smoking history.

Reply to Lauren

Lauren, your description of jugular venous pressure was clear, and I agree it is one of the most underused findings. One addition that can help when the neck veins are hard to see is the abdominojugular test. Pressing firmly on the abdomen for about 10 to 15 seconds while watching the jugular pulsation, a sustained rise of a few centimeters suggests elevated right-sided filling pressures, which supports heart failure (Bickley et al., 2021). It is easy to learn and useful in patients whose neck anatomy makes direct measurement difficult. I also appreciated your honesty that you had rarely measured jugular venous pressure in practice before this course; many of us rely on the chart's weight trend instead. Practicing on healthy volunteers, as this course asks us to do for the head-to-toe video, is a good way to learn what normal looks like before trying to judge abnormal. Have you found good lighting and positioning to be the biggest barriers when you practice? In my experience a penlight held tangentially across the neck makes the pulsation much easier to see.

Reply to Marcus

Marcus, your point that the examination is less sensitive than we would like is well taken, and the research supports you. Point-of-care ultrasound is increasingly used to extend the bedside examination, for example to look for B-lines in the lungs that suggest fluid or to estimate the size of the inferior vena cava. It does not replace the history and physical; it answers a question the examination raises. For an advanced practice nurse in primary care, where ultrasound may not be available, the practical approach is to use the classic findings to decide how urgently to obtain a chest x-ray and natriuretic peptide test, as the assessment text describes (Bickley et al., 2021). Your example of the patient whose wheeze turned out to be cardiac asthma from heart failure is a good reminder that wheeze does not always mean the lungs are the cause. How did the team recognize it in that patient? The answer would probably make a useful teaching point for the rest of us.

References

Bickley, L. S., Szilagyi, P. G., Hoffman, R. M., & Soriano, R. P. (2021). Bates' guide to physical examination and history taking (13th ed.). Wolters Kluwer.

Wang, C. S., FitzGerald, J. M., Schulzer, M., Mak, E., & Ayas, N. T. (2005). Does this dyspneic patient in the emergency department have congestive heart failure? JAMA, 294(15), 1944-1956. https://doi.org/10.1001/jama.294.15.1944