Nursing Elites

1. Glucagon is a hormone released into the bloodstream in response to high blood sugar. It helps to lower blood glucose after a meal.

• A. TRUE
• B. FALSE
• C.
• D.

Correct answer: B

Rationale: Glucagon is released in response to low blood sugar and raises blood glucose levels by stimulating the release of glucose from liver stores, not lowering it.

2. In preparation for ECT, the nurse knows that it is almost similar to that of:

• A. ECG
• B. General Anesthesia
• C. EEG
• D. MRI

Correct answer: B

Rationale: The correct answer is B: General Anesthesia. In preparation for ECT (Electroconvulsive Therapy), the nurse should be aware that it is almost similar to the process of administering general anesthesia. This similarity is crucial as it involves sedation and muscle relaxation to ensure safety during the procedure. Choice A (ECG) is incorrect because ECT and ECG (Electrocardiogram) serve different purposes and involve distinct procedures. Choice C (EEG) is incorrect as EEG (Electroencephalogram) measures brain activity and is not directly related to ECT. Choice D (MRI) is also incorrect as MRI (Magnetic Resonance Imaging) is a diagnostic imaging procedure that does not involve sedation or muscle relaxation like ECT and general anesthesia.

3. Each statement is true of proteins, except one. Which is the exception?

• A. Proteins are composed of building blocks called amino acids
• B. The classification of the 20 common amino acids is based on the properties of their side chains
• C. The general structure of an amino acid varies considerably
• D. Amino acids polymerize to form long chains called polypeptides

Correct answer: B

Rationale: The correct answer is B. The classification of the 20 common amino acids is not based on the properties of their side chains, but rather on the structure of their amino and carboxyl groups. These groups are consistent among all amino acids, while the side chains, also known as R groups, are what vary and give each amino acid its unique properties. Choice A is correct because proteins are indeed composed of amino acids. Choice C is incorrect because while the side chains of amino acids can vary, the general structure of an amino acid - a central carbon atom bonded to an amino group, a carboxyl group, a hydrogen atom, and a side chain - is consistent. Choice D is correct because amino acids do polymerize to form long chains called polypeptides, which can then fold into complex shapes to form proteins.

4. Scurvy is caused by a deficiency of ascorbic acid (Vitamin C) because ascorbic acid is required for collagen synthesis. Is this statement true or false?

• A. TRUE
• B. FALSE
• C. Not applicable
• D. Not applicable

Correct answer: A

Rationale: The statement is accurate. Scurvy is indeed caused by a deficiency in ascorbic acid, which is another name for Vitamin C. This vitamin plays a crucial role in the synthesis of collagen, a protein that helps in the formation and strength of skin, blood vessels, tissues, and bones. When the body lacks Vitamin C, it cannot produce enough collagen, leading to symptoms associated with scurvy such as bleeding gums and weakened immunity. The choice 'False' is incorrect because it contradicts the proven medical and scientific understanding of the causes of scurvy. Choices 'C' and 'D' are marked as 'Not applicable' because the question only requires a true or false answer.

5. After consuming a meal high in fat, the _____ releases _______ to aid in digestion.

• A. stomach, acid
• B. liver, bile
• C. pancreas, bicarbonate
• D. gallbladder, bile

Correct answer: D

Rationale: The gallbladder releases bile into the small intestine to help digest fats. Bile emulsifies fats, breaking them down into smaller droplets for easier digestion. The stomach primarily releases gastric acid, the liver produces bile but stores it in the gallbladder, and the pancreas secretes bicarbonate to neutralize stomach acid in the small intestine. Therefore, choices A, B, and C are incorrect.

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