Nokea
Which of the following mismatches pancreatic enzyme with its function?
- A. Proteolytic -> break down proteins
- B. Amylase -> break down carbohydrates
- C. Nuclease -> breaks down nucleic acids
- D. Pro-carboxypeptidase -> breaks down proteins
Correct Answer: D
Rationale: The correct answer is D because pro-carboxypeptidase is an inactive form of carboxypeptidase, which is involved in breaking down proteins. It is not a mismatch. A is correct as proteolytic enzymes indeed break down proteins. B is correct as amylase breaks down carbohydrates. C is correct as nuclease enzymes break down nucleic acids. Therefore, the mismatch is only seen in option D.
You may also like to solve these questions
The nervous system or systems that can control peristalsis in the inferior esophagus, stomach, small intestine and large intestine is (are) the
- A. somatic motor nervous system.
- B. sympathetic nervous system.
- C. sympathetic and parasympathetic nervous systems.
- D. autonomic and somatic motor nervous systems.
Correct Answer: C
Rationale: The correct answer is C because peristalsis, the involuntary movement of the digestive tract, is controlled by both sympathetic and parasympathetic nervous systems. The parasympathetic nervous system stimulates peristalsis, while the sympathetic nervous system inhibits it. Choice A is incorrect because the somatic motor nervous system controls voluntary movements, not peristalsis. Choice B is incorrect because the sympathetic nervous system inhibits peristalsis. Choice D is incorrect because the somatic motor nervous system does not control peristalsis in the digestive tract; it controls skeletal muscle movements.
Although HAV antigens are not tested in the blood, they stimulate specific immunoglobulin M (IgM) and immunoglobulin G (IgG) antibodies. Which antibody indicates there is acute HAV infection?
- A. Anti-HBc IgG
- B. Anti-HBc IgM
- C. Anti-HAV IgG
- D. Anti-HAV IgM
Correct Answer: D
Rationale: The correct answer is D: Anti-HAV IgM. IgM antibodies indicate acute infection as they are the first antibodies produced in response to a new infection. In the case of HAV, the presence of Anti-HAV IgM suggests recent exposure to the virus.
A: Anti-HBc IgG is not relevant to HAV infection. It indicates past or chronic hepatitis B infection.
B: Anti-HBc IgM is specific to hepatitis B infection, not HAV.
C: Anti-HAV IgG indicates past exposure or immunity to HAV, not acute infection.
Care for which of these clients is most appropriate to assign to the LPN/LVN, under the supervision of an RN?
- A. A client with oral cancer who is scheduled in the morning for glossectomy
- B. An obese client returned from surgery following a vertical banded gastroplasty
- C. A client with anorexia nervosa with muscle weakness and decreased urine output
- D. A client with intractable nausea and vomiting related to chemotherapy
Correct Answer: D
Rationale: The correct answer is D because the LPN/LVN can provide care for a client with intractable nausea and vomiting related to chemotherapy under the supervision of an RN. The LPN/LVN can administer prescribed antiemetic medications, monitor the client's response, assess for dehydration, and provide comfort measures. This task falls within the scope of practice for an LPN/LVN and does not require the advanced assessment and intervention skills of an RN.
Choice A is incorrect because a client undergoing a glossectomy for oral cancer requires complex post-operative care that is beyond the scope of practice for an LPN/LVN.
Choice B is incorrect because post-operative care for an obese client following a vertical banded gastroplasty involves monitoring for complications such as leaks or infections, which require the expertise of an RN.
Choice C is incorrect because a client with anorexia nervosa with muscle weakness and decreased urine output may have underlying medical issues that require an RN's assessment and intervention skills
Water transport can occur from the lumen of the intestine to the blood stream, or from the blood stream to the intestinal lumen. Which single statement about this phenomenon, below, is actually correct?
- A. A 'flip-flop' mechanism efficiently transports water directly across the enterocyte membrane
- B. Water flows into the gut from the mucosa, during digestion of starch and protein, in order to reduce luminal osmolality
- C. Water is mostly absorbed by movement between the cells lining the gut (enterocytes) via tight junctions
- D. Dietary intake of water is always greater than water movement in the small intestine
Correct Answer: C
Rationale: The correct answer is C because water is indeed mostly absorbed by movement between the cells lining the gut (enterocytes) via tight junctions. This is known as paracellular transport. Water moves through the spaces between the cells due to osmotic gradients and is then taken up by blood vessels. A: The 'flip-flop' mechanism is not a recognized mechanism for water transport in the intestine. B: Water does not flow into the gut from the mucosa during digestion, rather it moves from the gut lumen into the blood. D: Dietary intake of water can vary and may not always be greater than water movement in the small intestine.
A patient comes to the hospital complaining of vomiting and diarrhoea. The doctor suggested that the patient take glucose and electrolyte solution orally. Which one of following membrane proteins is likely to be involved in rehydrating the patient?
- A. Cystic fibrosis transmembrane regulator (CFTR)
- B. Sodium glucose transporter protein! (SGLT1)
- C. Insulin receptor protein (IRP)
- D. Sucrase-isomaltase protein (SIP)
Correct Answer: B
Rationale: The correct answer is B: Sodium glucose transporter protein 1 (SGLT1). SGLT1 is responsible for the active transport of glucose and sodium across the intestinal membrane. When a patient is experiencing vomiting and diarrhea, they are losing fluids and electrolytes. By taking a glucose and electrolyte solution orally, the SGLT1 protein helps in the reabsorption of glucose and sodium to facilitate rehydration.
Incorrect choices:
A: Cystic fibrosis transmembrane regulator (CFTR) is associated with cystic fibrosis and does not play a direct role in rehydration.
C: Insulin receptor protein (IRP) is involved in glucose uptake regulation in response to insulin, not rehydration.
D: Sucrase-isomaltase protein (SIP) is involved in the breakdown of sugars in the small intestine, not rehydration.