Answer:
ECG paper is a grid where time is measured along the horizontal axis.
Each small square is 1 mm in length and represents 0.04 seconds.
Each larger square is 5 mm in length and represents 0.2 seconds.
Voltage is measured along the vertical axis.
10 mm is equal to 1mV in voltage.
The diagram below illustrates the configuration of ECG graph paper and where to measure the components of the ECG wave form
Heart rate can be easily calculated from the ECG strip:
When the rhythm is regular, the heart rate is 300 divided by the number of large squares between the QRS complexes.
For example, if there are 4 large squares between regular QRS complexes, the heart rate is 75 (300/4=75).
The second method can be used with an irregular rhythm to estimate the rate. Count the number of R waves in a 6 second strip and multiply by 10.
For example, if there are 7 R waves in a 6 second strip, the heart rate is 70 (7x10=70).
The most important consideration when issuing a clinical practice recommendation for a preventive service across a large population is that the preventive services causes no harm.
<h3>What are preventive services?</h3>
Screenings, check-ups, and patient counselling are all part of routine health care is referred to as preventive services.
Preventive care can significantly increase your lifespan because it allows you to detect problems early and treat them more effectively.
For example, if one practices weight management and lose excess weight/keep it off, you will live longer and avoid serious diseases such as type 2 diabetes and heart disease.
Thus, the most important consideration when issuing a clinical practice recommendation for a preventive service across a large population is that the preventive services causes no harm.
For more details regarding preventive services, visit:
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A placebo experiment is one that does no harm or good. A lot of the time researchers will have a. placebo group and a another control group with the actual treatment. The key in placebo is that no one knows if they have it or not. C
Answer:
Explanation:
Left coronary artery - divides into two branches (the circumflex artery and the left anterior descending artery). Left anterior descending artery (LAD) - supplies blood to the front and bottom of the left ventricle and the front of the septum. Pulmonary veins - bring oxygen-rich blood back to the heart from the lungs.
<h3><u>
Diabetes mellitus and Diabetes Insipidus
</u></h3>
Explanation:
Diabetes mellitus and diabetes insipidus are both metabolic endocrine diseases caused due to hormonal imbalance.
<u>Etiology</u><u>:
</u>
<u>Organ and hormone involved</u><u>: </u>
Diabetes mellitus occurs due to inefficiency of the pancreas to produce sufficient amount of the hormone insulin or lack of insulin action resulting in uncontrolled blood glucose levels.
Diabetes insipidus occurs due to inefficiency of the pituitary glands to produce sufficient amount of the antidiuretic hormone vasopressin or lack of vasopressin action resulting in uncontrolled water metabolism.
<u>Signs and symptoms:
</u>
Diabetes mellitus results in increasing blood glucose levels, polyuria and nocturia, polydipsia, polyphagia, fatigue and various other complications affecting eyes, kidneys, nervous system, and heart as the disease progresses.
Diabetes insipidus results in increasing water levels due kidneys excreting large amounts of diluted urine leading to polyuria, polydipsia, and excessive dehydration and fatigue.
<u>Diagnostic/lab tests and results:
</u>
Diabetes mellitus is tested by testing blood glucose levels.
Diabetes insipidus is tested by testing water deprivation or vasopressin level test/the 24-hour urine for urine osmolality levels along with serum electrolyte level tests.
These tests are based on response to vasopressin, urine concentration abilities, urine osmolality, and electrolyte levels of the blood.
