Jane presents with red discolouration of her nail plate, on a background of recently worsening kidney failure

What are some causes of red discolouration of the nail plate?

1. Splinter heamorrhages
2. Kidney failure
3. Polycythaemia

I struggled to even find  picture for this one.

Reading

1. Murtaghs General Practice Chapter 129 – http://murtagh.mhmedical.com/content.aspx?bookid=1522&sectionid=116046129
2. Murtaghs Practice Tips – Chapter 8 – Nail Problems – http://murtagh.mhmedical.com/content.aspx?bookid=1920&sectionid=143276631

Podcast

1. GP Core Content Podcast Episode 150 – Dermatology | Nails