
Certified Nursing Assistants (CNAs) are unlicensed assistive personnel who support nurses in their duties. While the specific tasks they can perform vary by state, CNAs generally do not assess patients. However, they can gather information, document it, and report to the nurse and MD. CNAs may use stethoscopes to take manual blood pressure readings, but they are not responsible for assessing breath sounds, which is typically done by Licensed Practical Nurses (LPNs) or Registered Nurses (RNs). LPNs can listen to lung, bowel, and heart sounds and report their findings to the RN, who makes a comprehensive assessment.
| Characteristics | Values |
|---|---|
| Who can listen to lung sounds? | Licensed nurses (RN) or LPNs |
| Who cannot listen to lung sounds? | CNAs |
| Who can CNAs report their findings to? | RN and MD |
| What can CNAs do? | Gather information, document it, and report it |
| What can be done by CNAs in some states? | Drawing blood, obtaining EKGs, or checking blood glucose levels |
Explore related products
What You'll Learn

CNAs may use stethoscopes for manual blood pressure readings
Certified Nursing Assistants (CNAs) are often the first healthcare professionals to notice changes in a patient's vital signs, which can provide early warning signs of potential health issues. CNAs are trained to measure and interpret these vital signs, which include temperature, pulse, respiratory rate, blood pressure, and oxygen saturation.
Blood pressure is a vital sign that measures the force of blood against the arteries during and between heartbeats, expressed as systolic over diastolic pressure. CNAs learn to use both manual (sphygmomanometer) and digital blood pressure monitors for this purpose. To obtain accurate readings, CNAs are taught proper positioning, cuff placement, and techniques. For instance, the patient should be seated with their legs and arms uncrossed, and their elbow supported at heart level.
While CNAs do not listen to breath sounds or assess patients, they may occasionally use a stethoscope for manual blood pressure readings. This is not a common practice, and most CNAs rely on vital machines for blood pressure measurements. However, in certain states, CNAs can take classes and become certified to perform additional tasks, such as checking blood glucose levels, drawing blood, and obtaining EKGs.
Overall, while stethoscope use by CNAs is rare, it can be a valuable skill to have, especially in states where CNAs have expanded responsibilities.
How Acoustic Ceiling Tiles Reduce Noise
You may want to see also
Explore related products

CNAs do not perform independent assessments
Certified Nursing Assistants (CNAs) are not permitted to perform independent assessments. While they can gather information, document it, and report back to the nurse and MD, they are not qualified to make independent diagnoses. CNAs are not nurses, and their scope of practice is much more limited. For example, in some states, CNAs can draw blood, obtain EKGs, or check blood glucose levels if they have completed a certification course. However, they are not trained to interpret the results or make clinical decisions.
Lung sounds are detected by auscultation, which is listening to the sounds produced by the lungs and airways using a stethoscope. Recognizing normal and abnormal lung sounds is a fundamental skill for nurses, who use this information to identify potential problems and monitor patients' progress. Different types of breath sounds include bronchial and vesicular, with the former heard over the trachea and the latter on the thorax over the lung fields. Abnormal lung sounds, such as wheezes, rattles, and high-pitched whistles, can indicate that the client's respiratory system is struggling to meet the body's oxygen demands.
While CNAs may use stethoscopes to take manual blood pressure readings, they are generally not responsible for assessing lung sounds. This is because breath sounds are considered an assessment, and CNAs do not perform assessments independently. Instead, they may document what they hear, such as "crackling sounds on the left side," and then pass this information on to the RN, who will make the official assessment. For example, the RN may chart "rhonchi in the left lower lobe," indicating an issue with the larger airways. This information is then used by the MD to make a diagnosis, such as acute bronchitis.
While some people have argued that CNAs in certain states, such as Arizona, are allowed to assess and chart breath sounds, this has been met with skepticism by the nursing community. They argue that CNAs are not qualified to make such assessments and that it is beyond their scope of practice. It is important to note that the scope of practice for CNAs can vary between states, and some tasks may be delegated to CNAs in some facilities but not in others. However, as a general rule, CNAs do not perform independent assessments, including lung sound assessments.
Overall, while CNAs play an important role in patient care, they are not trained or qualified to perform independent assessments, including lung sound assessments. Their role is to gather information and report it to the supervising nurse or MD, who will make the official assessment and diagnosis. This division of responsibilities ensures that patients receive safe and effective care.
Scientists: How Did Parasaurolophus Really Sound?
You may want to see also
Explore related products

LPNs can listen to lung sounds and report findings to RNs
Listening to lung sounds is a fundamental skill for nurses in clinical practice. It involves the use of a stethoscope to listen to the sounds produced by the lungs and airways, which are called breath sounds. Breath sounds are an assessment, and as such, CNAs are not responsible for them. LPNs, on the other hand, can listen to lung sounds and report their findings to RNs. This is because the LPN scope of practice is much more similar to that of an RN.
LPNs can perform a focused assessment by listening to lung sounds and reporting their findings to an RN, but a comprehensive assessment is conducted by the RN. LPNs can also perform standard procedures on stable patients, such as wound care, catheter insertion, and obtaining blood glucose levels.
To listen to lung sounds, the patient is instructed to take deep breaths through their mouth. The stethoscope should be correctly placed to obtain a quality assessment, avoiding listening over bones, female breasts, or hair, as these may create inaccurate sounds from friction. The best position for listening to lung sounds is with the patient sitting upright. However, if the patient is unwell or unable to sit up, they can be turned side to side while lying down. As the patient breathes, different sounds may be heard on inspiration and expiration, and these sounds vary depending on the area being auscultated.
Recognizing normal lung sounds is essential to differentiate them from abnormal sounds, such as rhonchi, wheezing, stridor, or rales. Nurses can use this information to identify potential problems and monitor a patient's progress.
It is important to note that the tasks delegated to LPNs may vary depending on the state and the facility's nursing protocols. For example, in some states, LPNs are allowed to administer IV medications and start IVs if they have completed a certification course. Therefore, it is crucial to be familiar with the specific state and facility guidelines when determining the scope of practice for LPNs.
Creating Your Own Beats: A Step-by-Step Guide
You may want to see also
Explore related products

Lung sounds are detected by auscultation
Lung sounds are detected by a technique called auscultation, which involves listening to the internal sounds of the body using a stethoscope. This technique is performed by healthcare professionals such as medical doctors and registered nurses during physical examinations. While CNAs are not responsible for taking breath sounds, they may use a stethoscope to take manual blood pressure readings in certain situations.
Auscultation is typically performed in a quiet, private setting. The patient is asked to take a deep breath while the healthcare professional listens to the lung sounds on both the anterior and posterior sides of the chest. The stethoscope is placed flat on the body at different locations corresponding to the organs being examined. It has two sides: the bell, which is cone-shaped and used for hearing low-pitched sounds, and the diaphragm, which is the larger, flat side used for detecting high-pitched sounds.
There are two types of normal breath sounds: bronchial and vesicular. Bronchial sounds are heard over the trachea and are typically loud, harsh, and high-pitched. They are predominantly heard during exhalation, and if heard in other areas of the lung, they are considered abnormal. Vesicular breath sounds, on the other hand, are soft, low-pitched, and predominantly inspiratory. They are best heard over the entirety of the lung fields, including the top, middle, and bottom sections of both lungs.
Abnormal lung sounds, also known as adventitious breath sounds, can include wheezes, rhonchi, crackles, and rales. These sounds can be caused by various conditions such as bronchitis, asthma, heart failure, pneumonia, or inflammation of the lungs. For example, wheezes can be caused by a narrow airway or inflamed lung tissue, and are often associated with asthma or COPD. Crackles, also known as rales, are caused by air moving through alveoli (tiny air sacs in the lower lungs) filled with fluid, and can be high or low-pitched. Rhonchi are low-pitched, continuous gurgling or bubbling sounds caused by fluid movement and secretions in larger airways related to conditions like asthma or respiratory infections.
In addition to breath sounds, auscultation can also detect vocal resonance, which is the transmission of higher-frequency sounds through pathological lung tissue. Tests for vocal resonance include bronchophony, egophony, and whispered pectoriloquy, where the clinician listens for changes in the patient's vocal sounds as they speak or whisper.
Crested Geckos: Sound Sensitivity and Their Wellbeing
You may want to see also
Explore related products

Recognising normal lung sounds is essential
There are two types of breath sounds: bronchial and vesicular. Bronchial sounds are heard over the trachea, while vesicular breath sounds are heard on the thorax over the lung fields. It is important to listen through the entire respiratory cycle, as different sounds may be heard on inspiration and expiration. For example, inspiratory wheezing is a high-pitched blowing sound that occurs during inspiration, usually in the upper or middle portions of the lungs. In contrast, expiratory wheezing occurs during expiration and can be low and soft-pitched, making it harder to hear.
When auscultating lung sounds, it is crucial to ensure correct stethoscope placement. The patient should be instructed to take deep breaths through their mouth, and the stethoscope should not be placed over clothes or hair, as these can create inaccurate sounds from friction. The best position for listening to lung sounds is with the patient sitting upright. However, if the patient is acutely ill or unable to sit upright, they can be turned side to side in a lying position. Additionally, it is important to avoid listening over bones, such as the scapulae or clavicles, or over female breasts, to ensure adequate sound transmission.
While CNAs may not perform independent assessments, they can gather information and report it to the nurse and MD. In some states, CNAs are allowed to draw blood, obtain EKGs, or check blood glucose levels if they have completed a certification course. However, it is uncommon for CNAs to use stethoscopes or take breath sound readings, as this is typically done by nurses or LPNs.
Sound Energy: Vibrations Create Audible Magic
You may want to see also
Frequently asked questions
CNAs are not responsible for assessing patients or taking breath sounds. They can, however, gather information, document it, and report it to the nurse and MD. CNAs may use a stethoscope to take manual blood pressure readings.
Lung sounds are detected by auscultation, or listening via a stethoscope, as the patient inhales and exhales. Different sounds may be heard on inspiration and expiration. The stethoscope should not be performed over clothes or hair, and the best position for listening is with the patient sitting upright.
There are two types of breath sounds: bronchial and vesicular. Bronchial sounds are heard over the trachea, and vesicular breath sounds are heard on the thorax over the lung fields. Adventitious lung sounds are abnormal. Crackles, also called rales, are caused by air moving through alveoli, the tiny air sacs in the lower lungs. Wheezes can sound like a whistle and are caused by a narrow airway or inflamed lung tissue.











































