full transcript

From the Ted Talk by Tien Nguyen: How do pregnancy tests work?

Unscramble the Blue Letters


These ttess are pretty reliable, but they're not flrooapif. For insancte, fsale nvitegaes can occur if concentrations of HCG aren't high enough for detection. After implantation, HCG levels double every two to three days, so it may just be too ealry to tell. And beverages can dilute the urine sample, which is why doorcts recommend taking the test first thing in the morning. On the other hand, false positives can come from other sources of HCG, like IVF injections, ectopic pregnancies, or certain cancers such as uterine cancer or testicular cancer, making it possible for one of these tests to tell a man he's pregnant. The best way for a waomn to find out for sure is at the doctor's office. The doctors are also looking for HCG, but with tests that are more sensitive and quantitative, which means they can drnieetme the exact level of HCG in your blood.

Open Cloze


These _____ are pretty reliable, but they're not _________. For ________, _____ _________ can occur if concentrations of HCG aren't high enough for detection. After implantation, HCG levels double every two to three days, so it may just be too _____ to tell. And beverages can dilute the urine sample, which is why _______ recommend taking the test first thing in the morning. On the other hand, false positives can come from other sources of HCG, like IVF injections, ectopic pregnancies, or certain cancers such as uterine cancer or testicular cancer, making it possible for one of these tests to tell a man he's pregnant. The best way for a _____ to find out for sure is at the doctor's office. The doctors are also looking for HCG, but with tests that are more sensitive and quantitative, which means they can _________ the exact level of HCG in your blood.

Solution


  1. doctors
  2. early
  3. woman
  4. instance
  5. negatives
  6. false
  7. failproof
  8. determine
  9. tests

Original Text


These tests are pretty reliable, but they're not failproof. For instance, false negatives can occur if concentrations of HCG aren't high enough for detection. After implantation, HCG levels double every two to three days, so it may just be too early to tell. And beverages can dilute the urine sample, which is why doctors recommend taking the test first thing in the morning. On the other hand, false positives can come from other sources of HCG, like IVF injections, ectopic pregnancies, or certain cancers such as uterine cancer or testicular cancer, making it possible for one of these tests to tell a man he's pregnant. The best way for a woman to find out for sure is at the doctor's office. The doctors are also looking for HCG, but with tests that are more sensitive and quantitative, which means they can determine the exact level of HCG in your blood.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
pregnancy test 2
pregnancy tests 2


Important Words


  1. beverages
  2. blood
  3. cancer
  4. cancers
  5. concentrations
  6. days
  7. detection
  8. determine
  9. dilute
  10. doctors
  11. double
  12. early
  13. ectopic
  14. exact
  15. failproof
  16. false
  17. find
  18. hand
  19. hcg
  20. high
  21. implantation
  22. injections
  23. instance
  24. ivf
  25. level
  26. levels
  27. making
  28. man
  29. means
  30. morning
  31. negatives
  32. occur
  33. office
  34. positives
  35. pregnancies
  36. pregnant
  37. pretty
  38. quantitative
  39. recommend
  40. reliable
  41. sample
  42. sensitive
  43. sources
  44. test
  45. testicular
  46. tests
  47. urine
  48. uterine
  49. woman