Nurse

The Nurse is an NPC that will spawn once the following criteria have been met:
 * There is an empty House.
 * The player's maximum life has been increased with a Life Crystal.
 * Merchant is present.

The Nurse will heal the player's health and cure them of any active debuffs (there are exceptions, see Notes and History), for a price. Healing costs can range from a few copper to a few silver, depending on how much damage the player has taken. She charges Copper equal to 75% of the health restored (e.g. for 100 health), plus an additional  for every active debuff on the player.

In the, she will fight enemies by throwing poison syringes that will damage and poison enemies for 3-6 seconds. She can also use healing syringes to heal herself and other friendly NPCs.

Names
The Nurse may have any of the following names:

Quotes
Note: The Nurse has many quotes that vary with the amount of damage the player has taken, whether or not they have enough coins to pay, and whether it is a Blood Moon.

Anytime other than during a Blood Moon: Before defeating the Wall of Flesh: Before defeating Skeletron: When Demolitionist is present: When Arms Dealer is present: When Tavernkeep is present: When player is moderately injured (less than 66% health): When player is badly injured (less than 33% health): During a Blood Moon: When player clicks Heal: During a Party:
 * "" (a reference to the effects of the Guide Voodoo Doll when it is thrown into lava.)
 * When player is at full health to moderately injured:
 * When player is badly injured:
 * When player is badly injured:
 * When player is badly injured:
 * When player is badly injured:
 * When player is badly injured:
 * When player clicks Heal if slightly injured:
 * When player clicks Heal if moderately injured:
 * When player clicks Heal if very badly injured:
 * When player clicks Heal at full health:
 * When player clicks Heal without enough coins:
 * When player clicks Heal at full health:
 * When player clicks Heal without enough coins:
 * When player clicks Heal at full health:
 * When player clicks Heal without enough coins:
 * When player clicks Heal without enough coins:
 * When player clicks Heal without enough coins:
 * When player clicks Heal without enough coins:

Trivia

 * There appears to be conflict between the Nurse and the Mechanic during a Blood Moon. When both are present, they have various hostile sayings that replace their standard quotes (see Quotes). During this time, the Merchant has a chance of saying, ""
 * The Arms Dealer seemingly has romantic interest in her according to his quotes when the Nurse is present. This is also reflected in the Nurse's quote ""
 * The Nurse is depicted in a Painting called Nurse Lisa, a reference to the famous painting by Leonardo da Vinci, Mona Lisa.
 * During a party, when the Nurse dons a party hat, her hairstyle is different. She wears it down instead of up in a ponytail: Nurse (Party).png This makes sense as wearing a party hat while having hair in a ponytail would be cumbersome.
 * Some players might use the Nurse as a healing station when at low health during a boss fight by teleporting home with a nurse in it. It's commonly used due to the cheap cost of healing back to full health. This could also be used with autopause to make it easier to heal up.

History
Krankenschwester Infirmière 간호사 Медсестра 护士