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OCR A Level Biology A H420-02 Biological diversity 2025

OCR A Level Biology A H420-01 Biological processes 2025

1. The nurse is reviewing medical prescriptions for newly admitted clients. It would be a priority for the nurse to follow up with the physician if a client with (a) a potassium level of 4.5mEq/L has Kayexalate (sodium polystyrene) prescribed (b) a Dilantin (phenytoin) level of 8 mcg/ml is placed on seizure precautions(c) sensitivity to Aspirin (acetylsalicylic acid) is prescribed Tylenol (acetaminophen) (d) sensitivity to Penicillin is prescribed Zithromax (azithromycin) 2. The nurse s...

1. What are the two major types of nucleic acids and their roles? DNA (deoxyribonucleic acid): Contains the genetic material as well as heredity characteristics found in living organisms. RNA (ribonucleic acid): its role is for decoding the sequence of heredity information found in DNA Answer Key 1. Complete the following RNA strand and indicate how many bonds are formed for each complementary pair: 3’ GGUCAUCG 5’ 5’ CC AGC 3’ 3’ GGUCAUCG 5’ 5’ CCAGUAGC 3’ There are 2 ...

A client with leukemia is being considered for a bone marrow transplant. The healthcare team is discussing the risks and benefits of this treatment and other possible treatments with the goal of inflicting the least possible harm on the client. Which principle of healthcare ethics is the team practicing? Justice Fidelity Nonmaleficence Autonomy Rationale: Nonmaleficence is the avoidance of hurt or harm. Remember that in healthcare ethics, ethical practice involves not only the will to d...

1. Which best describes the primary reason that Americans are concerned about health care? a. Politicians are discussing how to improve health care. b. The media has provided mixed messages about the health care system. c. Our national health care costs keep increasing. d. The new health care system offers free services to Americans. ANS: C 2. A nurse has begun to lobby with politicians for changes to the health care system. Why is this involvement important? a. Nurses, as central charac...

A female client with a nasogastric tube attached to low suction statesthatshe is nauseated.The nurse assesses that there has been no drainage through the nasogastric tube in the last 2hours. Which action should the nurse take first? A. Irrigate the nasogastric tube with sterile normalsaline. B. Reposition the client on her side. C. Advance the nasogastric tube 5 cm. D. Administer an intravenous antiemetic as prescribed. B. The priority isto determined if the tube isfunctioning correctly, ...

 A client with depression remains in bed most of the day, and declines activities. Which nursingproblem has the greatest priority for this client?  Loss of interest in diversional activity.  Social isolation.  Refusal to address nutritional needs.  Low self-esteem.  The RN is preparing medications for a client with bipolar disorder and notices that the clientdiscontinued antipsychotic medication for several days. Which medication should also be discontinued?  Lithiu...

Question 1 A school-age client with diabetes is placed on an intermediateacting insulin and regular insulin before breakfast and before dinner. She will receive a snack of milk and cereal at bedtime. What does the nurse tell the client the snack is intended to do? You Selected: • Prevent late night hypoglycemia. Correct response: • Prevent late night hypoglycemia. Question 2 A well-known public official of a small community is admitted to the emergency department following an episo...