Answer:
The presence of spotting, or some bleeding, during the first trimester of a pregnancy, is normal, as the placenta attaches itself on the uterine wall. However, there must never be severe bleeding, or pain. In the case of Mary Healy, she is presenting severe bleeding at her 3rd month of pregnancy, to the point that she has had 4 sanitary napkins used in an hour. Therefore, the doctor will have to:
a) The doctor will be concerned about three possible scenarios: the first, a miscarriage, which often happens during these first three months of pregnancy, and come with heavy bleeding depending on the type of miscarriage. The second scenario, is an ectopic pregnancy, which is a very serious case that requires emergency intervention. The third is infection, which could have caused a possible abortion.
b) The blood type that can be given to Mary Healy in an emergency situation is a complete packed red blood cell transfusion of O Rh negative type. This type is called the universal donor an it is because it is the least likely to cause an immune response from the host, when transfused.
c) The tests performed in blood work for women who present heavy bleeding during the first trimester of their pregnancy include the blood type to see if there is incompatibility, and also to evaluate the levels of pregnancy hormones. The blood type tests will also allow to know the reaction of the body to multiple transfusions, and there will possibly be a test for blood clotting factors.
The chronological order of events starting from poisoning should be as follows:
- Ricin enters the victim's body
- Ricin is absorbed into the blood and enters the cells
- Ricin binds to ribosomes in the cytoplasm
- Ricin inactivates 28s rRNA in the large subunits of the ribosomes
- Ribosomes are unable to add new amino acids to polypeptides
- Protein synthesis halts in many tissues
- Multiple organ systems fail
- The victim dies
Ricin is a plant toxin. It is poisonous to mammalian cells as it interferes with the catalytic activity of ribosomes in protein synthesis. It irreversibly binds to the ribosomal subunits and halts the polypeptide synthesis process, leading to cell death.
Note: Your question is incomplete, but probably it includes the following options:
a. Ricin is absorbed into the blood and enters the cells
b. Ricin inactivates 28s rRNA in the large subunits of the ribosomes
c. Ricin binds to ribosomes in the cytoplasm
d. Ricin enters the victim's body
e. Multiple organ systems fail
f. Protein synthesis halts in many tissues
g. The victim dies
h. Ribosomes are unable to add new amino acids to polypeptides
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Answer: With people who work during the weekdays, heart attacks are most likely to occur on cold days due to blood vessels as they constrict.
explanation: The blood vessels are the part of the circulatory system, and microcirculation, that transports blood throughout the human body. These vessels are designed to transport nutrients and oxygen to the tissues of the body. They also take waste and carbon dioxide and carry them away from the tissues and back to the heart.