Endocrinology Quiz: Hormones and Hypothalamus
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Questions and Answers

Which of the following is false about hormones?

  • They are transported by protein (correct)
  • They are elaborated by specific ductless gland
  • They are directly poured into the circulation
  • They are chemical messengers and produce biochemical changes of target organs
  • Which hormone is not produced by the hypothalamus?

  • GnRH
  • CRF
  • ACTH (correct)
  • TRH
  • Vasopressin and oxytocin are elaborated by which gland?

  • Posterior pituitary gland (correct)
  • Anterior pituitary gland
  • Adrenal medulla
  • Adrenal cortex
  • Which of the following is a thyroid hormone?

    <p>Calcitonin</p> Signup and view all the answers

    Which one of these is a steroid hormone?

    <p>TSH</p> Signup and view all the answers

    What is the effect of a 1°C increase in temperature on pO2 and pCO2 in a patient with fever?

    <p>pO2 decreases by 7%; pCO2 increases by 3%</p> Signup and view all the answers

    How does plasma protein interference affect the measurement of samples in clinical chemistry?

    <p>It affects diffusion rate of the samples</p> Signup and view all the answers

    What effect does bacterial contamination have on the measurement of PO2 in a sample?

    <p>It causes low PO2 due to oxygen consumption</p> Signup and view all the answers

    Why is transportation of samples at room temperature preferred for PO2 analysis?

    <p>PO2 changes rapidly at low temperatures</p> Signup and view all the answers

    What happens to arterial blood when exposed to room air?

    <p>pO2 increases; pCO2 decreases</p> Signup and view all the answers

    What is the effect of bacterial contamination on the measurement of pO2 in a blood sample?

    <p>Decreased pO2 due to oxygen consumption by bacteria</p> Signup and view all the answers

    How does plasma protein interference affect the measurement of samples in clinical chemistry?

    <p>Affects diffusion rate of samples</p> Signup and view all the answers

    What is the normal ratio of carbonic acid to bicarbonate in arterial blood?

    <p>1:20</p> Signup and view all the answers

    When arterial blood from a normal patient is exposed to room air, what happens to pO2 and pCO2?

    <p>pO2 increases; pCO2 decreases</p> Signup and view all the answers

    In a patient with arterial blood gas results showing pH 7.48, pCO2 54 mmHg, and HCO3- 38 mmol/L, what do these values indicate?

    <p>Metabolic alkalosis</p> Signup and view all the answers

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