Answer:
The correct option is : a. causing threshold to be reached more quickly
Explanation:
Norepinephrine, also known as noradrenalin, is an organic compound, which belongs to the catecholamine family. It acts as a hormone and a neurotransmitter in the brain and the body and also impacts the heart.
It is one of the hormones secreted by the adrenal medulla. Norepinephrine is a part of the fight-or-flight mechanism of the body. It acts by binding to the β-1 receptors and opens the chemical or ligand gated calcium and sodium ion channels. Therefore, <u>it causes the threshold to be reached faster </u>by increasing the rate of depolarization and thus causes heart arrhythmia.
Therefore, <u>Norepinephrine acts on the heart by </u><u>causing threshold to be reached faster.</u>
Answer:
Thematic Apperception Test
Explanation:
The anterior fontanel is a diamond-shaped area where the frontal and parietal bones meet. It closes between 12 and 18 months of age. Vigorous crying may cause the fontanel to bulge, which is a normal finding. A nurse is performing an assessment on a postterm infant.
<h3>What is anterior fontanel?</h3>
- This is the junction where the 2 frontal and 2 parietal bones meet. The anterior fontanelle stays soft until about 18 months to 2 years of age. Doctors can consider if there is increased intracranial pressure by touching the anterior fontanelle.
- The fontanel can broaden in the first few months of life,18 and the median age of closure is 13.8 months. By three months of age, the anterior fontanel is secured in 1 percent of infants; by 12 months, it is closed in 38 percent; and by 24 months, it is closed in 96 percent.
- The fontanelle allows the skull to distort during birth to facilitate its passage through the birth canal and for expansion of the brain after birth. Skull at birth, showing frontal and occipital fonticuli. The anterior fontanelle normally closes between the periods of 12 and 18 months.
To learn more about anterior fontanel, refer to:
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Answer:
Chest compression fraction >80% Compression rate of 100-120/min. Compression depth of at least 50 mm (2 inches)
The instructions which the nurse should include on the list after treating a patient with tuberculosis include the following:
- Activities should be resumed gradually.
- A sputum culture is needed every 2 to 4 weeks once medication therapy is initiated.
- Respiratory isolation is not necessary because family members already have been exposed.
- Cover the mouth and nose when coughing or sneezing and put used tissues in plastic bags.
<h3>What is Tuberculosis?</h3>
This refers to a disease which is caused by a bacterium called Mycobacterium tuberculosis. This bacteria attacks the lungs thereby resulting in symptoms such as coughing, weight loss etc.
After being treated, the patient can resume activities and don't need any isolation but should ensure that the mouth and nose are covered and disposed properly when coughing.
A sputum culture is needed every 2 to 4 weeks once medication therapy is initiated so as to confirm the absence of the bacteria so as to discontinue drug usage.
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