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• A nurse is caring for a patient after surgery who underwent a liver resection. His prothrombin time and activated partial thromboplastin time are greater than normal. He has low blood pressure; tachycardia; thready pulse; and cool, clammy, pale skin; and he is restless. The nurse assesses his surgical wound, and the dressing is saturated with.
• A patient complains of left-sided chest pain while receiving mechanical ventilation. Inspection, palpation and auscultation reveal tachypnea, a weak and thready pulse, tracheal deviation to the right, and decreased breath sounds and hyperresonance on the left. Which of the following would you recommend? Chest tube insertion.
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• Thready Pulse Vs Weak Pulse
• Thready Pulse Define
• Thready Pulse Vs Weak Pulse
• Thready Pulse Meaning
• Thready Pulse Definition

Many pulse oximeters provide a pulse bar or pleth (plethysmograph); however this information has been largely ignored by most users even when it provides some very important information signals. The pulse bar or pleth is a graphical representation of how your heart beats; although it does not give you a set of numbers, it gives you an indication of your general health and heart conditions. Here we will discuss how and why you should pay attention to this signal.

It is difficult to have one guideline for all people as the pulse is dependent on many variables, such as age, gender, circadian rhythm, body build, stress and emotions, exercise and activities, body temperature.. It is important to establish a norm for you at various situations, such as resting after meal or during rigorous exercise. Then pay attention for any deviation from your norm. If you have any questions, ask your doctor.

Pulse assessment has been used in various degrees in medical field. In western medicine, pulse assessment is commonly performed by palpating the pulse at the wrist or listening to the heart beats at the chest with a stethoscope. In oriental medicine, palpation on the wrist is the primary method used. Pulse diagnosis plays an important role in the history of Chinese medicine.

Low blood pressure due to decrease in cardiac output. A rapid, weak, thready pulse due to decreased circulation combined with tachycardia. Cool, clammy, and mottled skin (cutis marmorata) due to vasoconstriction and subsequent hypoperfusion of the skin. Distended jugular veins due to increased jugular venous pressure.

Features of a pulse

When assessing a patient's pulse, there are three important factors; pulse rate, pulse strength and or volume, and pulse rhythm. All three of these factors can be observed through the pulse bar or pleth displayed by an oximeter.

Pulse rate

For a normal adult and under normal conditions, the heart rate ranges from 60 to 100 beats per minute (bpm). For well-trained athletes, the heart rate can go as low as 40bpm.

Tachycardia is a heart condition that causes the heart to beat in excess of 100 bpm. Drweb for mac os. Rapid contraction, if sustained, tends to overwork the heart and reduce blood circulation leading to low blood oxygen saturation level. For this condition medical treatment is required.

Bradycardia is a heart condition with heart beats below 60bpm. Unless you are an athlete, this would merit continued monitoring as bradycardia can be caused by some issues with the heart's electrical system.

Pulse strength (volume)

Pulse strength or volume is related the amount of blood pumped with each heartbeat or the force associated with each contraction. A normal pulse is one that can be felt with mild pressure on the artery. A thready pulse or weak pulse is one that is difficult to feel or obliterated easily with slight pressure. A full or bounding pulse has a pronounced pulsation that does not easily disappear with pressure. A rapid thready pulse is normally a sign of serious concern and must be reported immediately. There are different ways to classify the pulse strength. The following table shows one particular approach.

With a pulse oximeter, similar information can be observed from the amplitude of the pleth wave or the fluctuation in the pulse bar. In order to establish a point of reference you can try to get a reading from several people to see what the various patterns look like.

For weak or thready pulses, some oximeters may have trouble getting a reading. It would be a good idea to double check the readings.

Pulse rhythm

The pulse rhythm is the pattern of pulsations, amplitude, and the pauses between each pulse. They should be regular and consistent from beat to beat. An arrhythmia or dysrhythmia (irregular patterns) is cause for serious concern and should be treated by medical professionals as soon as possible. An electrocardiogram should be performed for further clarification.

• Pulse is simply your cardiac performance that can be palpated at the neck (carotid), at the side of your head just above and lateral to the eye (temporal), at your chest specifically on the left side of the (apical), at the wrist (radial), at the inner aspect of the biceps (brachial), at the inguinal area (femoral), behind the knee (popliteal), and near the ankle joint (posterior tibial artery). Aside from pulse which one of our vital sign (cardinal sign), many agencies have designated pain as a fifth vital sign.
• As our heart’s left ventricle contract, a wave of blood is created, known as pulse. It represents the stroke volume output and the amount of blood that is pump away from the heart with each ventricular contraction.
• A volume of blood that is pump out by the heart is called Cardiac Output, this equal to stroke volume (SV) times your heart rate per minute. Your pulse reflects the beat of your heart, the rate of your pulse is same as the rate of the ventricular heart contraction. However, in patient with cardiovascular disease, the pulse and the heartbeat can be differ. A pulse that is located in the foot, wrist, or neck is called Peripheral pulse, while a pulse that is located at the apex of the heart is called Apical pulse.

Thready Pulse Vs Weak Pulse

Factors Influencing Pulse Rate:

Thready Pulse Define

• Age. As our age increases, the pulse rate gradually decreases.
• Gender. After puberty, the average male’s pulse rate is slightly lower than the female’s.
• Exercise. Pulse normally increases during physical activity.
• Fever. The pulse rate increases because metabolic rate is increased and in response to peripheral vasodilation due to elevated body temperature.
• Medications. There is some cardiac medication decrease pulse and other may increase.
• Hypovolemic. Blood loss results in an adjustment of your heart to increase its job as compensatory mechanism due to the loss of blood volume.
• Stress. Extreme emotion, fear, anxiety and pain, sympathetic nervous stimulation increases the overall activity of the heart.
• Position changes. When you are in sitting or standing position, blood goes to your lower extremities that caused a transient decrease blood supply to the heart and a reduction of blood pressure and increase in heart rate.
• Pathology. Heart diseases and alteration or impair oxygenation can change pulse rate.

Thready Pulse Vs Weak Pulse

Methods Used in Assessing the Pulse

• Palpation. The three fingers are used to assess all peripheral sites except the apical pulse.
• Auscultation. Health care provider uses a stethoscope or Doppler Ultrasound Stethoscope (DUS). DUS is used for pulses that are difficult to assess.

Thready Pulse Meaning

Data Collected when Assessing the Pulse

1. Pulse Rate. It is expressed in beats per minute (BPM). If your heart rate is over 100 BPM and excessively fast, it is referred to as Tachycardia. While bradycardia if your heart rate is less than 60 BPM. Apical pulse should be assessed if either tachycardia or bradycardia noted.
2. Pulse Rhythm. An electrocardiogram (ECG) is used to detect pulse rhythm. If abnormal or irregular rhythm is detected this referred to as a dysrhythmia or arrhythmia.
3. Pulse Volume. It is a force of blood with each heart contraction or beat. It is also called pulse strength or amplitude.
   • Full or Bounding Pulse – A forceful or full blood volume that is obliterated only with difficulty.
   • Weak, feeble or thready Pulse – A pulse that is readily obliterated with pressure from fingers.
4. Elasticity of the arterial wall. The artery of a healthy person is normally feels straight, smooth, soft and palpable. As age increases, artery became inelastic and irregular when palpated.
5. Presence or absence of bilateral equality. When assessing a peripheral pulse, the nurse should assess the corresponding pulse on the other side of the body. It gives a data with which to compare the pulses. If the client’s right and left pulses are the same, this called bilateral equal pulse.

Sites in Assessing the Pulse

• Pulse can be measured and palpated in nine sites. There are two types of pulse, the Peripheral pulse and Apical pulse. Apical pulse is usually used for infants and children up to 3 years of age. Apical pulse assessment is indicated for clients whose peripheral pulse is irregular and for client with cardiovascular, pulmonary and renal disease. For the pulse location, how to locate the pulse?, and reasons for the using the site, see the table below.

Thready Pulse Definition