The cycle is called Yo-Yo dieting.
Answer:
This is the banking of red cell units from the patient before planned surgery.
PAD was stimulated by concerns about viral transmission by donor blood, especially during the HIV epidemic of the early 1980s. With a red cell storage-life of 35 days at 4°C, most healthy adult patients can donate up to three red cell units before elective surgery. Patients may be given iron supplements, sometimes with erythropoietin, to prevent anaemia or allow more donations to be collected. The Blood Safety and Quality Regulations (BSQR, 2005) require that donations for PAD must be performed in a licensed blood establishment, rather than a routine hospital setting. The donations must be processed and tested in the same way as donor blood and are subject to the same requirements for traceability.
Given the current remote risk of viral transfusion-transmitted infection by donor blood in developed countries, the rationale, safety and cost-effectiveness of routine PAD has been severely questioned (see 2007 British Committee for Standards in Haematology (BCSH) Guidelines for Policies on Alternatives to Allogeneic Blood Transfusion. 1. Predeposit Autologous Blood Donation and Transfusion – https://b-s-h.org.uk) and the procedure is now rarely performed in the UK. Although PAD may reduce exposure to donor blood, it does not reduce overall exposure to transfusion procedures or protect against wrong blood into patient episodes due to identification errors at collection from the blood bank or at the bedside. Indeed, the availability of autologous blood may increase the risk of unnecessary transfusion. Most Jehovah’s Witnesses will decline PAD (see Chapter 12). Clinical trials of PAD are mainly small and of low quality and do not provide strong evidence that the risks outweigh the benefits. The BCSH guideline on PAD only recommends its use in ‘exceptional circumstances’, and lists the following indications for PAD:
Patients with rare blood groups or multiple blood group antibodies where compatible allogeneic (donor) blood is difficult to obtain.
Patients at serious psychiatric risk because of anxiety about exposure to donor blood.
Patients who refuse to consent to donor blood transfusion but will accept PAD.
Children undergoing scoliosis surgery (in practice, most specialist units now use other blood conservation measures).
PAD should only be considered in surgery with a significant likelihood of requiring transfusion, operation dates must be guaranteed and the patient’s ability to donate safely must be assessed by a ‘competent clinician’, usually a transfusion medicine specialist. Adverse events and reactions associated with PAD (or other autologous transfusion systems) should be reported to the Serious Hazards of Transfusion (SHOT) haemovigilance scheme and the Medicines and Healthcare Products Regulatory Agency (MHRA).
Rabbit's position vector (r) in the unit vector is 203.5î - 57j and the magnitude and directional angle of vector (r) are 195.35m and 0.004° respectively.
Given
x = 0.3t² + 7.2t + 28
y = 0.22t² - 9.1t +30
At t = 15s
x = 0.3(15)² + 7.2(15) +28 = 203.5
y = 0.22(15)² - 9.1(15) + 30 = -57
The rabbit's position vector (r) in unit vector notation is:
r = 203.5î - 57j
The magnitude of position vector (r)
r = √x² + y²
r = √(203.5)² - (57)² =√38163.25
= 195.35m
The directional angle of position vector (r)
tanθ = y/x = -57/203.5
θ = 
(-57/203.5)
θ = 0.004°
Hence, rabbit's position vector (r) in the unit vector is 203.5î - 57j and the magnitude and directional angle of vector (r) are 195.35m and 0.004° respectively.
Learn more about Position vector here brainly.com/question/23922381
#SPJ1
It is important for goals to be measurable because it adds to their specificity and allows you to track your progress toward your achievement. With measurable goals, you can know exactly what you are trying to accomplish and what you need to meet to improve. For example, if you set a goal saying, “I want to be doing 80 sit ups in a minute by the end of this month by increasing my total amount of sit ups by 4 a day” you are now not only able to track how much you are increasing each day, but can see your specific total you are working for and track your progress on your way to reaching that goal.
Always make sure to set realistic goals that follow the MAD guidelines:
M-Measurable
A- Attainable
D- Deadline Driven
I hope this helps! :)
Answer:
b) Fetal hypersensitivity to anesthetic
Explanation:
In general, any type of anesthesia does not present major problems, ie the risks of anesthesia in pregnancy are low, but it depends on a number of factors, ie they exist.
The fetus may have some sensitivity to the anesthetic drug and this may increase the risk of malformation of the baby, for example. The greatest risks are those of spontaneous abortion and premature birth. The likelihood of an abortion when a woman takes anesthesia is about 6%, up to 11% if given in the first trimester of pregnancy. The other concern, premature birth, must also be great, since there is an 8% chance of this happening when a pregnant woman is subjected to anesthesia.
But then how to deal with this kind of problem since anesthesia can do harm to the baby? As we said earlier, everything will depend on a number of factors. Of course, if you can avoid and only take anesthesia after pregnancy, this is most recommended.
