« previous next »

Author Question: A 75-year-old male presents with chest pain on exertion. The chest pain is most likely due to ... (Read 128 times)

K@

  • Hero Member
  • *****
  • Posts: 608
on: Jun 25, 2018
A 75-year-old male presents with chest pain on exertion. The chest pain is most likely due to hy-poxic injury secondary to:
 
  a. malnutrition.
  b. free radicals.
  c. ischemia.
  d. chemical toxicity.

Question 2

Sodium and water accumulation in an injured cell are a direct result of:
 
  a. decreased ATP production.
  b. karyorrhexis.
  c. ribosome detachment.
  d. dehydration.


parker125

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: C
The cardiac cells are deprived of oxygen, leading to ischemia, a reduction in blood supply to tis-sues. The cells are deprived of oxygen; they are not malnourished. Free radicals are electrically uncharged atoms or groups of atoms that have an unpaired electron. Chemical toxicity is not a factor in the chest pain.

Answer to Question 2

ANS: A
A reduction in ATP levels causes the plasma membrane's sodium-potassium (Na+-K+) pump and sodium-calcium exchange to fail. Sodium and water can then enter the cell freely. Karyorrhexis means fragmentation of the nucleus into smaller particles or nuclear dust. Ribosome detach-ment reduces protein synthesis. Dehydration leads to loss of sodium and water.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

The tolerance of male lions towards the cubs varies. They are, however, generally more likely to sha The tolerance of male lions towards the cubs varies. They are, however, generally more likely to sha
Male Orange Tip Male Orange Tip
Sublingual medication administration. Photograph of a male patient placing a nitroglycerine tablet u Sublingual medication administration. Photograph of a male patient placing a nitroglycerine tablet u
chitinous, exoskeletal surface of a male louse chitinous, exoskeletal surface of a male louse
Measuring the Chest Circumference of a Child Measuring the Chest Circumference of a Child
Common Types of Neuropathic Pain Common Types of Neuropathic Pain
Video: Cellular defenses (natural killer cells, phagocyte types & process of phagocytosis)

For a complete list of videos, visit our video library